SOLD AS SINGLE CAPS
Protect your optics from dust and scratches with our high quality lens caps designed for a wide range of optical devices such as binoculars, spotting scopes, cameras, telescope eyepieces and more. Crafted from premium materials these lens caps offer exceptional protection for your lenses ensuring they stay pristine and ready for action whenever you need them. Sizes range from 11mm to 91mm. Full specifications for all caps can be found in the table below.
Note: Cap size is the internal diameter of cap.
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Features
- Protects optics from dust, scratches, moisture and other environmental elements
- Durable construction from premium materials
- Universal fit
- Easy attachment and removal
- Shock-absorbent design
- Weather resistant
- Secure fit
- Lightweight and compact
- Easy to clean with water
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Suitable for:
- Binoculars
- Spotting Scopes
- Monoculars
- Rifle Scopes
- Cameras
- Microscope Eyepieces / Accessories
- Telescope Eyepieces / Accessories
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Cap Materials
The caps are made from various high quality materials including plastic, rubber or silicone. All caps have a degree of flex in them even those made from plastic which are similar to the flex found in a milk bottle cap, but obviously of a much higher grade of plastic. Two sizes (55mm, 60.5mm) are made from a semi-rigid plastic which is stiffer. The silicone caps are very flexible. All caps can be washed in water to clean them if needed.
Cap Selection and Measuring
Cap size is the internal diameter of the cap, which is the external diameter of the lens housing. To choose the right size cap measure the external housing diameter (including any ridges) with a ruler by placing it across the middle of the lens, cross check the measurement by repeating in the opposite direction, a calliper can also be used. Another simple and accurate way of measuring is using the paper strip method (see last photo). Simply cut a thin strip of paper and wrap it around the lens housing, ensure it is tight then put a mark where it crosses the starting edge of the strip underneath it. Remove the strip and measure the distance from the starting edge to the mark you made. To get the diameter simply take this measurement and divide it by 3.14. This is the circumference to diameter calculation.
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Buying more than one size? Add to basket.
If you need different sized caps just add the sizes to your basket and check out. This will keep the items in one order and you will only pay 1 postage fee.
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Cap Compatibility
Binoculars
Suitable for a wide variety of binoculars, from compact 20mm binoculars up to large binoculars in the 80mm range. They are also suitable for marine and astronomical binoculars. Caps are available for the objectives and the eyecups.
Monoculars
These will fit a wide variety of monoculars from pocket 15mm monoculars up to 60mm full-size monoculars. Also suitable for night vision and thermal monoculars. Caps are available for the objective lens and the eyecup.
Spotting Scopes
Suitable for many sizes of spotting scopes from compact 40mm scopes to high powered scopes in the 80mm range. Caps are available for the objective lens and the eyecup.
Cameras
Can be used to cover a wide variety of camera lenses, including SLR, DSLR, Compact, Action, Bike, Dive, CCTV, CMOS, CCD etc. They can also be used for video cameras.
Rifle Scopes
The caps available will cover almost all types of rifle scopes from small 20mm compact scopes to large high-powered optics in the 60-80mm range. There are caps available for the objective lens and the eyecup.
Microscope Eyepieces / Accessories
Suitable for a wide variety of microscopes such as compound, stereo, digital and research microscopes with caps available for objective lenses, eyepieces and camera lenses. They are also suitable for microscope accessories such as camera adapters, light ports, optical filters and auxiliary lenses.
Telescope Eyepieces / Accessories
These caps are suitable for a wide range of 1.25", 2" and 0.965" eyepieces and accessories. There are caps for the top lens of the eyepiece and the bottom nosepiece barrel. Nosepiece caps are also suitable for accessories such as Barlow Lenses*, Diagonals and Adapters. The 32mm cap fits 1.25" nosepiece barrels, the 50.5-51.5mm cap fits 2" nosepiece barrels. The caps are also suitable for CMOS and CCD cameras used in astrophotography and also for finderscopes.
*On some 1.25" barlows the lens is housed in a narrower black section at the end of the nosepiece barrel. If your barlow has this it will not fit the standard 1.25" nosepiece cap, you will need a smaller cap. The black section varies in diameter between barlows but is generally between 28-30mm.
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Cap Specifications
| Internal Diameter (A) | Internal Height (B) | Colour | Material |
|---|---|---|---|
| 11mm | 6mm | Black | Plastic |
| 12mm | 6mm | Black | Plastic |
| 13mm | 5mm | Black | Plastic |
| 14mm | 5mm | Black | Plastic |
| 15mm | 6mm | Black | Plastic |
| 16mm | 6mm | Black | Plastic |
| 17mm | 7mm | Black | Plastic |
| 18mm | 4mm | Black | Plastic |
| 18.8mm | 4.5mm | Black | Plastic |
| 19-20mm | 11mm | Black | PVC (Vinyl) |
| 20mm | 3mm | Black | Plastic |
| 21mm | 11mm | Black | PVC (Vinyl) |
| 22mm | 8mm | Black | Plastic |
| 22.3mm | 9mm | Black | Plastic |
| 23mm | 6mm | Black | Plastic |
| 23.2mm | 6mm | Black | Plastic |
| 23.5mm | 10mm | Black | Plastic |
| 25mm | 5mm | Black | Plastic |
| 25.5mm | 7mm | Black | Plastic |
| 27mm | 7mm | Black | Plastic |
| 28mm | 7mm | Black | Plastic |
| 29mm | 7mm | Black | Plastic |
| 30mm | 8mm | Black | Plastic |
| 31mm | 12.5mm | Black | PVC (Vinyl) |
| 32mm | 7mm | Black | Plastic |
| 33mm | 9mm | Black | Plastic |
| 34mm | 7mm | Black | Plastic |
| 35mm | 7mm | Black | Plastic |
| 36mm | 7mm | Black | Plastic |
| 37mm | 7mm | Black | Plastic |
| 38.5mm - 39.5mm | 21mm | Black | Silicone |
| 40mm | 7mm | Black | Plastic |
| 40.5mm - 41.5mm | 21.5mm | Black | Silicone |
| 42mm | 7mm | Black | Plastic |
| 43mm | 7mm | Black | Plastic |
| 44mm | 8mm | Black | Silicone |
| 45mm | 7mm | Black | Plastic |
| 46mm | 8mm | Black | Silicone |
| 47mm | 7.5mm | Black | Plastic |
| 48mm | 7.5mm | Black | Plastic |
| 49mm | 7.5mm | Black | Silicone |
| 50mm | 7.5mm | Black | Plastic |
| 50.5mm - 51.5mm | 26mm | Black | Silicone |
| 52.5mm - 53.5mm | 29mm | Black | Silicone |
| 54.5mm - 55.5mm | 29mm | Black | Silicone |
| 55mm | 7mm | Black | Plastic (Semi Rigid) |
| 56-57mm | 7mm | Black | Silicone |
| 58-59mm | 8mm | Black | Rubber |
| 60.5mm | 10mm | Black | Plastic (Semi Rigid) |
| 60.5mm - 61.5mm | 29mm | Black | Silicone |
| 62.5mm - 63.5mm | 29mm | Black | Silicone |
| 64.5mm - 65.5mm | 29mm | Black | Silicone |
| 65mm | 7.5mm | Black | Plastic |
| 66.5mm - 67.5mm | 30mm | Black | Silicone |
| 68.5mm - 69.5mm | 30mm | Black | Silicone |
| 70.5mm - 71.5mm | 32mm | Black | Silicone |
| 73mm - 74mm | 35mm | Black | Silicone |
| 74.5mm - 75.5mm | 35mm | Black | Silicone |
| 76.5mm - 77.5mm | 35mm | Black | Silicone |
| 78.5mm - 79.5mm | 35mm | Black | Silicone |
| 79.4mm (fits 80mm) | 26mm | Black | Plastic |
| 80mm - 81mm | 35mm | Black | Silicone |
| 82.5mm - 83.5mm | 35mm | Black | Silicone |
| 85mm - 86mm | 35mm | Black | Silicone |
| 87.5mm - 88.5mm | 35mm | Black | Silicone |
| 90mm | 7mm | Black | Silicone |
| 90mm - 91mm | 35mm | Black | Silicone |
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Need to return for a different size?
Just buy the new size then start a return on eBay by going to your order.
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Size out of stock?
Get in touch to check availability.
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Any questions, just ask
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Also available...
Binocular Cases
- 50mm Porro Prism - View Listing
- 50mm Roof Prism - View Listing
- 42mm Roof Prism - View Listing
- 32mm Roof Prism - View Listing
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Contact
For all enquiries please contact us through ebay. Messages will be answered during working hours 9am-5.30pm Mon-Fri excluding holidays.
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Shipping
- Shipped with Royal Mail.
- 1 day dispatch.
- Please note eBay assign 'tracking numbers' to all listings whether tracked or not, so with untracked orders this number will not generate any tracking history.
- Royal Mail Tracked 24 / 48 cannot deliver to the following destinations: Jersey, Guernsey. Instead Royal Mail 1st / 2nd Class will be used.
- International orders can be sent either untracked (Royal Mail International Standard) or tracked (Royal Mail International Tracked), these options are available to choose at checkout.
- Separate international orders cannot be combined into one shipment.
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Delivery Dates
- Please note eBay's delivery dates are estimates only. Actual delivery dates may vary, especially during peak periods.
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Returns / Refunds / Replacements / Swaps
- Full money-back, no hassle 30 day returns.
- Item must be returned in original condition.
- Start a return through eBay by going to your order.
- Refunds will be processed within 1-2 working days after receiving item.
- To swap an item for another, start a return by going to your order then purchase the other item.
- In the unlikely event that an order has not been received replacements or refunds will not be issued until 7 days have elapsed after eBay’s latest estimated delivery date.