Nikon Eclipse TE300 Inverted Fluorescence Microscope System Lab

This was removed from a university lab where it was surplus to requirements.

This system is in good cosmetic condition with all included units in working order.

1 x Nikon Eclipse TE300 body fitted with:

1 x Nikon 065851 multi position binocular neck.

1 x Nikon manual stage.

1 x Nikon filter holder, no filters fitted.

1 x Nikon Condenser Turret fitted with 1 x LWD ∞ Ph3 & 1 x Blanking plate.

The other 3 blanking plates are missing.

1 x Nikon LWD 0.52

2 x Nikon CFI 10x/22 eyepieces.

1 x Nikon Plan Flour

20x/0.50

Ph1 DLL

Objective.

1 x Nikon LHS-H100P-1 Halogen 12v 100w Lamp.

1 x Nikon TE-PSE100 Power supply with control cable.

1 x Nikon LH-M100C-1 Mercury 100w Lamp. (Run hours not known, bulb will require replacement).

1 x Nikon C-SHG1 Power Supply. (Run time counter reset).

Wild Leitz GMBH Fluovert FU 090-128.017 Inverted Microscope w/ 2 x Objectives Ph

This item was removed from a university laboratory where it was surplus to requirements.

The microscope is in reasonable cosmetic condition, with a crack at the bottom of the unit.

It could not be fully tested as the power supply required for the lamp was not included.

Includes:

• Leitz EF L 20/0.32 PHACO1 160/- objective (519436)
• Leitz EF 10/0.25 PHACO1 160/- objective (519767)
• Leitz 2 × Periplan GF 10x/18 M eyepieces
• Carl Zeiss S-PL 10x/20 eyepiece

Model: FU 090-128.017

Nikon Eclipse TE300 Inverted Fluorescence Microscope

This item was removed from a university where it was surplus to requirements.

The microscope powers on and produced a clear slide image when tested with an in-house objective (not included).

It is in good cosmetic condition, however, the protective visor has snapped off. This does not affect its functionality.

Included:

• Nikon Power Supply (Model: TE-PSE30, S/N: 4010214)
• Q Imaging QI Click Camera (Model: 01-QIClick-F-M-12, S/N: Q28643)
• 2 x CFI 10X/22 Eyepieces

Specifications:

• Model: TE300
• S/N: 533589

Leica DMR Type 020-525.735 Fluorescence Microscope Lab

This item was removed from a university where it was surplus to requirement.

It is in good cosmetic condition and powers on with the bottom-mounted lamp in good working order.

We are unable to test the top-mounted lamp as the required power supply is not included.

Includes with the microscope are the following:

• Leica MPS 60 Camera
• Leica ∞/0.17 C Plan 100x/1.25 Oil Objective
• Leica ∞/-/A N Plan 5x/0.12 Objective
• 504058 Leica Illuminator
• Leica 807-072.057 Lamp Module (damaged)
• Box of misc tools and accessories

ISI ABT Scanning Electron Microscope (SEM) ABT-55

This was removed from a university lab where it was surplus to requirements. We are told it was in working order prior to being put into storage some time ago

Included are;

ISA ABT 55 Main Control Unit

With 25cm CRT monitor

Control desk with all control switches and buttons

Microscope ABT 55 Unit

Serial No. K244149

Year 1989

Controls for vacuum system, not included

ETP Sempra Robison Detector Head and Control Module

Model PSM-11-4

Serial No. 524

The main units were not powered up due to no plug on the main power supply unit, it was previously hard wired.

The Robinson Detector unit powered on and displayed readiness lights.

Accessories:

5 x used spare copper columns

4 x small aluminium fitting plates

Operators Manual

4 x 15 amp fuses

Filament cartridge

Zeiss Axioskop 2 System Power Supply

This system was removed from a university lab where it was surplus to requirements.

All included units power on and are in good cosmetic condition.

The previous client has stated this system was in full working order prior to removal.

The system includes the following Zeiss objectives, all of which are producing clear images and are in good condition with no scratches:

• Zeiss Plan-NEOFLUAR 20X/0.50 (1004-072)
• Zeiss Epiplan 10X/0.20 HD (44 29 34)
• Zeiss Plan-NEOFLUAR 40X/0.75 (44 03 50)
• Zeiss Epiplan 50X/0.70 HD (44 29 54)

Additional components:

• Jena GmbH ebq 100 Isolated Power Supply (Model: ebq 100 isolated-z/101 26f, S/N: M 47415479)
• 2 x HAL 100 Lamps (1039-685, 44 72 19)
• 1 x HBO 100 Lamp 1007-980
• Imagingsource DFK 41AFO2 Camera
• 2 x Zeiss W-Pl 10x/23 Eyepieces (45 50 43)

Please note, there is no mercury bulb included.

Zeiss AxioSkop 2  Microscope w/ 3 x Objectives 20/40/100x Lab

This item was removed from a university laboratory where it was surplus to requirements.

It powers on and is in good used condition.

The microscope has been tested using in-house slides and is in good working order.  (test slide not included)

AxioSkop 2 Main Body

• Zeiss 45 23 44 Trinocular head with camera port
• Zeiss 45 21 87 Filter Cube fitted
• Zeiss 45 35 60 Specimen/Object Guide
• Zeiss 45 35 50 Rotary Stage
• Zeiss 44 54 39 Condenser
• Zeiss 44 72 19 HAL 100 Halogen Lamp

• Objectives:
• AmScope 20/0.40, 160/0.17 (Brand New)
• AmScope 40/0.65, 160/0.17 (Brand New)
• Zeiss Plan-NEOFLUAR 100x/1.30 Oil, ∞/0.17, 44 04 80

• Eyepieces:
• 2 x Zeiss 45 50 43 W-Pl 10x/23 Eyepieces

This Flir Systems ThermaCam SC500 194 780 was removed from a university lab where it was surplus to requirements.

The unit powers up and is in good cosmetic condition minor with marks from use, we are unable to test it further at our facility.

Included are the following:

Flir Systems PC Card Interface

P/N: 194 240

S/N: 2030068

HiTRON 13.5 volt Power Supply

M/N: HES61-11B

S/N: 0165

Flir Systems Break Out Box

P/N: 194 257

S/N: 3300066

Zeiss LSM 710 ECU Box With 3 x Lasers (Red, Green & Blue) Lab

This item was removed from a facility where it was surplus to requirement.

It is in good cosmetic condition and was removed from a Zeiss LS 710 System.

All three lasers are supplied complete with fibres; however, each unit will require fibre re-alignment.

The lasers are operational, though they are currently out of alignment.

The unit is fitted with 3 x lasers:

• 1 x Red
• 1 x Green
• 1 x Blue

Also included:

• 1 x LASOS PSU with remote.
• 1 x ECU remote.
• 3 x Power strips.
• Various cables.

Zeiss Axiovert 200M Inverted Microscope with Lamp, Condenser & Filters

This item was removed from a facility where it was surplus to requirement.

The microscope powers on and all buttons function as they should. It cannot be tested further due to missing components, and the display screen surround is broken.

We are told it is in perfect working order. It just needs eyepieces and objectives adding.

The system comprises the following:

• 1 x Zeiss Axiovert 200M stand
• 1 x Zeiss HAL100 Lamp – 44 72 19
• 1 x Zeiss LD 4 Position Condenser 0.3 – 45 13 56 (H, Pho, Ph1, Ph2)
• 1 x Zeiss Motorized 5 Position Filter Turret (Empty) – 1064-365
• 1 x Zeiss Binocular Tube – 1005-827
• 2 x Zeiss Iris Stop Slider – 1062-360

Also includes:

• 1 x Can-Bus cable
• 1 x RS232 cable
• 1 x Axioset software disc

Zeiss Axioplan 2 Microscope + LSM 510 Laser Scanning System

This system was removed from a university lab where it was surplus to requirements.

The microscope is in working order, but we have not tested the laser due to safety restrictions at our site.

There are no objectives fitted.

Items included are:

-Zeiss LSM Control S/N- 000260

-Hal 100 Lamp

-Lasos Lasertechnic GMBH S/N- 04041136 M/N- 9600-07

-Zeiss HBO 100W

-Zeiss HBO 100W/2

-Zeiss Lasermodul UV

-Fujitsu Siemans mouse

-Relevant manuals and guides

-Connection cables

-Comms PCi Cards & Dongle (non USB)

Oxford Instruments INCA X-Stream & INCA MICS Microanalysis System Lab

This item was removed from a facility where it was surplus to requirements.

The system is in good cosmetic condition.

Both units power on (tested using an in-house 24 VDC PSU).

Included Components

Oxford Instruments INCA X-Stream

• Assy: 51-1100-103
• Serial No: 04278
• Date Code: 04-07
• Powers on (tested with 24 VDC PSU)

Oxford Instruments INCA MICS

• Assy: 51-G-1100-119
• Serial No: 04590
• Date Code: 07-07
• Powers on (tested with 24 VDC PSU)

Software Media Included

• INCA Install Media
• INCA Crystal Training Material
• The Microanalysis Suite
• AZtec Issue 4.2 SP1
• Channel 5 Service Pack 10

Manuals Included

• Customer Training at Installation Time – CSG WIN 11-01

Leica DMRB Microscope System with 6 Objectives (PLFluotar & PLApo)

This system is being sold on behalf of a private client and is surplus to requirements.

The microscope has been privately owned and used occasionally for light microscopy. It is in full working order and remains in good cosmetic condition.

No formal service history is available.

Included Objectives (6 total)

• x5 PLFluotar
• x10 PLFluotar
• x20 PLFluotar
• x40 PLFluotar
• x40 PLApo
• x63 PLApo

Collection is available from Bourn, Cambridgeshire, UK (CB23 2TR).

Normal terms and conditions do not apply to this item, which is non-returnable and non-refundable.

Nikon Eclipse TE200 Microscope w/ 3 x Objectives Plan, Ph w/  TE-PS100 PSU Lab

This item was removed from a university where it was surplus to requirement.

The microscope is in good cosmetic condition and in full working order.

Includes the following;

Nikon TE-PS100 Power Supply

2 x Nikon CFI 10x/22 Eyepiece

Objectives:

Nikon LWD 20x/0.40 WD 3.0 MC2 HMC

Nikon Plan 4x/0.10 WD 30

Nikon Plan 10x/0.25 Ph1 D1 WD-10.5

Molecular Dynamics Storm 840 Microscopy System

This item was removed from a university lab where it was surplus to requirement.

It is in good cosmetic condition and powers on, we are unable to conduct further testing at our facility.

Leica CTR6500 Confocal Microscope Power Supply/Controller Lab

This item was removed from a university where it was surplus to requirement.

It is in excellent cosmetic condition and in good working order.

We originally purchased it as new without original packaging. We have used it one or two times.

This Optika Inverted Microscope Model XDS-2 was removed from a university lab where it was surplus to requirements.

The unit powers up and the lamp works, but it is otherwise untested as there are no objectives with it. All the moving parts move freely.

It is in good cosmetic condition with only minor marks from use.

2x Eyepieces:

EW 10X/22

Optika Inverted Microscope XDS-2

This item was removed from a university laboratory where it was surplus to requirements.

The microscope is in very good used cosmetic condition, showing signs of general use.

The lamp powers up and works as intended, and the lenses and objectives appear clear and functional.

Specifications:

• Model: XDS-2

Included Objectives:

• 1 x Optika Plan 4x/0.10 ∞/1.2
• 1 x Optika Plan PH10x/0.25 ∞/1.2
• 1 x Optika Plan PH20x/0.40 ∞/1.2
• 1 x Optika Plan 40x/0.60 ∞/1.2

Eyepieces:

• Pair of EW10X/22

Other Features:

• Microplate-type sample holder fitted on the stage
• Phototube extension for camera attachment

Leica DMIRB Inverted Microscope with 4× Objectives – Lab

This item was removed from a university where it was surplus to requirements.

The microscope is in good cosmetic condition and good working order.

Objectives included:

• Leica C Plan 4× / 0.10 ∞/–/↑ (506078)
• Leica C Plan 10× / 0.22 PH1 ∞/–/↑ (506064)
• Leica C Plan L 40× / 0.50 PH2 ∞/1.1
• Leica C Plan L 40× / 0.50 LMC ∞/1.1 (Leica Germany)

Accessories:

• 3 × Leica-branded boxes containing unknown parts/accessories
• Das Mikroskop Leica DMIRB manual

Arcturus PixCell IIe LCM2105 with COHU 1352-5000/0000 Camera Lab

This item was removed from a facility where it was surplus to requirement.

The unit is in very good cosmetic condition. Due to safety restrictions on testing Class 3 and above lasers at our facility, it has not been powered on.

Please note, there are no objectives included in this sale.

Includes;

• COHU 1352-5000/0000 Camera

Arcturus PixCell IIe LCM2105 Laser Capture Microdissection Microscope

This item was removed from a facility where it was surplus to requirement.

The unit is in very good cosmetic condition. Due to safety restrictions on testing Class 3 and above lasers at our facility, it has not been powered on.

Please note, there are no objectives included in this sale.

Leica Microsystems Type - TCS SP2 Confocal Microscope System

This was removed from a university lab where it was surplus to requirements.

What is included is in good working order, but the system is not complete.

It is missing the following;

Table top

Cooling unit

Microscope isolation table

Camera

Flexi tube for prior unit.

Bulb for prior unit.

There may be more missing parts, but we are unable to confirm.

It is in good cosmetic condition with minor marks.

Included are;

Leica TCS SP2 Microscope

Model: RCS SP2

Serial#: 142400026

Attached to microscope:

Leica ∞/0.17/E HCX PL APO 40x/1.25-0.75 OIL CS

Leica ∞/-/C HC PL APO 20x/0.75

Leica ∞/0.17/E HC PL APO 10x/0.40 CS

2 x Eyepieces HC PLAN S 10x/22

Leica Condenser 0.53 S 23 (521500)

Leica C Mount Adaptor 0.5x : 1/2" = 16 (541511)

All other items included:

Prior Lumen200

Model: L200/C

Serial#: 70808

Ernst Leitz Wetzlar Gmbh

Type: 307-072.45

Hg 100 W Bulb

Leica Power Supply for DiodeLaser COH 405nm, 25mW

Part#: 1530910001 03

Leica DM R Manual

Leica Confocal Software

Leica TCS User Manual

Leica PC with Software installed.

Leica Dust cover for Microscope and PC.

Nikon Eclipse E800 Microscope w/ Plan Flour 10x/0.30 Objective Lab

This item was removed from a university where it was surplus to requirement.

It is in good cosmetic condition and powers on, we are unable to test it further at our facility.

This microscope features the following:

1 x Nikon Japan 061242.

1 x Nikon C-CU Universal Condenser 079532.

1 x Nikon Japan Mechanical Stage.

1 x Nikon VFM Fitted with:

1 x UV-2A.

1 x B-2A.

1 x V-2A.

1 x Nikon Japan Binocular Head 341796

Fitted with 2 x CIFUW 10x/25 eyepieces.

1 x Nikon C-LP Halogen Lamp. (has been tested as working, with a PSU from stock/no PSU included)

1 x Nikon Hg Mercury Lamp. (has been tested as working, with a PSU from stock/no PSU included)

The microscope is fitted with the following objectives:

1 x Nikon JAPAN

Plan Flour

10x/0.30

DIC L

∞/0.17 WD 16.0

1 x Prism.

with FL40W fitted above.

As stated the PSUs for both Lamps are not included.

Marzhauser Wetzlar SCAN IM 130x100 DC - 1mm Stage Zeiss Axio Observer .Z1 Lab

This stage system was removed from a facility where it was surplus to requirement.

It is in good cosmetic condition and in good working order.

The stage is designed for a Zeiss Axio Observer .Z1, but is also compatible with other Zeiss microscope models.

Included;

• 1 x Pecon adjustable slide holder.
• 1 x Zeiss MCU 2008 Controller.
• 1 x Wienecke & Sinske JoyMach4 Joystick
• 1 x Observer .Z1 CAN cable.

Zeiss Axio Vert.A1 FL Inverted Microscope

This system was removed from a university lab where it was surplus to requirements.

The microscope is in very clean cosmetic condition. Four 27mm to RMS adapters have been fitted, allowing the use of standard RMS objectives. The microscope has been tested with an objective from stock and works as expected, though no objectives are currently fitted.

The instrument is configured as follows:

• 1 x Microscope stand Axio Vert.A1 FL (431030-9010-000)
• Nosepiece 2xH / 3xHDIC M27 and carrier for transmitted-light illumination
• Reflector modules: DAPI, FITC, TRITC, empty

• 1 x LD condenser 0.55 for H Ph PlasDIC DIC (424228-9030-000)
• Position 1: empty
• Position 2: 424228-9060 0.05T Neutral density filter 0.05
• Position 3: 426717-9170 Ph1/0.55 Phase stop Ph1/0.55
• Position 4: 426717-9180 Ph2/0.55 Phase stop Ph2/0.55
• Position 5: empty

• 1 x Illuminator LED for Axio Vert transmitted light (423004-9020-000)

• 1 x Stop slider A 14x40mm with aperture/luminous field diaphragm (423730-9151-000)

• 1 x Binocular tube 45º/23 (425523-9000-000) with 2 x 444036-9000 eyepieces PI 10x/23

• 1 x Mirror 100%, 26x36mm (452531-0001-010) with intermediate phototube H=50mm, left port (425146-9030-000)

• 1 x Camera adapter 60N-C 2/3" 0.5x (426112)

• 1 x Ergo Intermediate piece H=50mm for optimization of viewing height (425146-9040-00)

• 1 x Specimen stage 232x230mm with hardcoat anodized surface (432037-9000-000)

• Object guide M, 130x85mm, for Axio Vert (432333-9040-000)

• 1 x QImaging QIClick Camera (01-QIClick-R-F-CLR-12), Colour 12 Bit, Firewire operation

Nikon OPTIPHOT-2 Microscope System with Sony CCD-IRIS Camera

This system was removed from a university lab where it was surplus to requirements.

All included item are in good cosmetic condition.

The microscope powered on via test leads due to a disconnected door trip switch.

Voltage selector, lamps, and stage movement are all functioning correctly.

The cabinet is faulty, but the scope inside is operational.

System Components:

• Microscope Base: Nikon OPTIPHOT-2 with Nikon Transformer Model UN

• Objectives Included:
• Nikon 241187 M Plan 40/0.40 210/0 SLWD
• Nikon 322002 M Plan 100 0.90 Dry 210/0
• Nikon 322580 M Plan 60 0.80 210/0
• Nikon 334439 M Plan 40 0.65 210/0
• Nikon 328356 M Plan 20 0.4 LWD 210/0

• Additional Equipment:
• Bruker Infrared Microscope Power Supply
• Door Trip Switch Override
• Sony CCD-IRIS Camera

Condition and Testing:

The microscope was powered on using test IEC leads due to the door trip switch being disconnected, preventing a direct power connection.

• Voltage selector is operational.
• Both lamps power on as expected.
• Stage movement is functioning correctly.

Zeiss Axiovert S100 Microscope

This system was removed from a university lab where it was surplus to requirements.

The unit powers on and is in fair cosmetic condition. However, there is a cracked hole at the top front of the microscope.

Included:

• Blue filter
• Yellow/green filter

Objectives:

• Zeiss Achrostigmat 10x/0.25 (Yellow Band)
• Part No.: 44 01 31
• LD Achrostigmat 32x/0.40 PH1 (Green Band)
• Achrostigmat 5x/0.12 (Red Band)

Eyepiece:

• 2 x Carl Zeiss 44 42 32 E-Pl 10x/20

Hamamatsu ORCA-03G Camera

This system was removed from a university laboratory where it was surplus to requirements.

The camera and its AC adapter both power up, but no further testing has been conducted.

Includes:

• Hamamatsu ORCA-03G Camera C8484-03G02
• Hamamatsu AC Adapter A3472-06
• Camera multi-pin power cable
• Firewire 400 cable with NEET Firewire 400-800 adapter & Apple Firewire 800-Thunderbolt adapter

Please note, the system will require PC software and drivers for full operation, which are not included.

Model: C8484-03G02

Serial No.: [serial number]

VWR BL124A Brightfield Microscope

This item was removed from a university laboratory where it was surplus to requirements.

It is in good cosmetic condition and in good working order.

The lab has confirmed it was in good working order prior to removal.

Includes:

• 2 x Eyepieces: WF10X/18
• 4 x Optika Objectives:
• HC 100X/1.25 Oil/Water 160/0.17
• HC 40X/0.65 160/0.17
• HC 4X/0.1 160/0.17
• HC 10X/0.25 160/0.17

Job Lot of 50 x Motic Moticam 1 800x600 Pix Microscope Cameras

This lot was removed from a facility where it was surplus to requirement.

They are all in good working order.

Includes;

• 47 Motic Camera Adapters with 8mm Focusable Macro Lens
• 2 Motic Camera Adapters with 12mm Focusable Macro Lens
• 48 Motic Camera 30mm Eyepiece Adapters (2 Sealed)
• Large Supply of Power Cables for the items.

Carl Zeiss Axiophot Microscope Part No. 45 18 87

This item was removed from a university laboratory where it was surplus to requirements.

It powers on and is in good cosmetic condition.

The microscope is fully functional.

Included Objectives:

• Zeiss Plan-NEOFLUAR 2.5x/0.075 (Part No. 44 03 10)]
• Zeiss Plan-NEOFLUAR 100x/1.30 Oil (Part No. 44 04 80)
• Zeiss Plan-NEOFLUAR 40x/0.75 (Part No. 44 03 50)
• Zeiss Plan-NEOFLUAR 10x/0.30 (Part No. 44 03 30)
• Zeiss Plan-NEOFLUAR 20x/0.50 (Part No. 44 03 40)

Included Eyepieces:

• ZEISS  PL 10x/25 44 40 34

Marzhauser Wetzlar Scan 8 Slides Microscope Stage + Controller Lab

These items were removed from a university where they were surplus to requirement.

All items are in good cosmetic condition, we are unable to test them at our facility.

Includes the following:

• 1 x Scan 8 Slides Microscope Stage

S/N-08110333

• 1 x Marzhauser Wetzlar Joystick 3-Axis Controller

S/N-0837093031

• 1 x Ariol 3.3 Software Disc + USB Stick

• All relevant cables

Nikon Eclipse TE200 w/ 2 x Objectives Ph1 10x, Ph2 40x

This was removed from a university lab where it was surplus to requirements.

The unit powers up and is in good working order.

It is in good cosmetic condition with minor marks.

Item includes the following:

Nikon Plan 40X/0.65 Ph2 DL ∞ 0.17 WD 0.57

Nikon Plan 10X/0.25 Ph1 DL ∞/ - WD 10.5

PicoView PV 5000 w/ Model-XC-ST30CE Camera Lab

This item was removed from a university where it was surplus to requirement.

It is in good cosmetic condition, we are unable to power on or test it further at our facility.

This item is fitted with the following:

• Melles Griot 160/0.17 2.5/0.07 Objective
• CCD Video Camera Module

Zeiss Axiophot Fluorescent Microscope Lab

This item was removed from a university where it was surplus to requirement.

It is in good cosmetic condition and powers on, it has been tested with in-house test objectives.

(Objectives not included)

This microscope includes:

2 x Pl 10x / 25 Eyepiece (44 40 34)

Carl Zeiss Axiovert S 100 TV Inverted Microscope

The unit powers up but has not been tested as we do not have the objectives. It has received a full clean of all optical components and the realignment of the light path was completed. All mechanical parts were fully lubricated and reassembled.

Missing focus spindle (confocal removed.

It is in good cosmetic condition with minor marks.



Prior ProScan III V31XYZE/A  With Prior PS3J100 Lab

This item was removed from a university lab where it was surplus to requirement.

Both the Prior ProScan III V31XYZE/A and Prior PS3J100 power up, we are unable to test them further at our facility.

Parts included are:

1 x Prior ProScan III V31XYZE/A

1 x Prior PS3J100

With the stage X/Y cable.

Inverted Microscope with 4 Objectives (4x, 10x, 20x, 40x)

This item was removed from a university laboratory where it was surplus to requirements.

It powers on and operates as expected. Objectives and eyepieces are clear.

Includes:

• 4x objective: PLA4X/0.10 WD22.3
• 10x objective: PLA10X/0.5PH WD6.2
• 20x objective: PLAL20X/0.40PH WD3.1
• 40x objective: PLA40X/0.55PH WD2.2
• 2 × eyepieces: WF10X/20

Brunel SP550C Comparison Microscope Lab

This item was removed from a university where it was surplus to requirements.

The microscope is in reasonably good cosmetic condition and in good working order.

The only noted issue is that the rubber around the eyepieces has started to deteriorate, making it slightly sticky.

All eyepieces and objectives are clear, and optical performance is unaffected.

Includes:

• Objectives:
• 4/0.1 160/0.17
• 10/0.25 160/0.17
• 40/0.65 160/0.17
• 100/1.25 Oil 160/0.17
• 2 × WF10X DIN/18MM eyepieces