The 90mm Push-On Lens Cap from Schneider is a simple, soft plastic slip-on style cap designed to protect the front or rear elements of a lens when not in use. The cap fits lenses that have a front or rear ring with an outside diameter of 90mm; this size differs from the threaded filter ring diameter of a lens.

Soft Plastic, Slip-On Design    For Lenses with 90mm Outside Diameter    Protects Lens Elements When Not in Use

Related Questions and Answers

Q: 1. Does it fit on Heliopan 62mm Variable ND filter?

A: If your ND filter have the female thread to receive it, it will work. This one have no female thread, only the male one, so it must be the the last one to be mounted.

Q: 2. Will this fit over a 24mm filter thread ring? Specifically a 24mm Heliopan UV filter on a Rollei 35 Tessar.

A: Yes, the Schneider 25mm Push-On Lens Cap can fit over a Heliopan 24mm UV filter mounted on a Rollei 35 Tessar.

Q: 3. What is a Slip-On Design? How it differ from other lens cap?

A: The Schneider 86mm Push-On Lens Cap is like most any other lens caps listed as slip on. This is an image of the back side of the lens cap, https://bhpho.to/41aBHDW.

Q: 4. Will this fit a mamiya medium format 90mm lens?

A: That depends on the exact lens you are using. This is not for lenses with a 90mm Focal Length, but for a lens that have an outside diameter of 90mm. With a vintage lens you will want to use a tape measure to see what the outside diameter is. From there this listing has a drop down menu that shows different sizes, there may be a size that better fits the lens you have.

Q: 5. Will it be fit with 25mm UV filter from Tiffen?

A: I have no idea!

Q: 6. does it fit a Pentax da 40mm lens?

A: As long as the lens is 40mm in diameter, this lens cap will fit.

Q: 7. Anyone test these on SLR Magic Microprime Cine's?

A: No, the Schneider 85mm Push-On Lens Cap has not been tested on the SLR Magic MicroPrime Cine lens. Also, as the SLR Magic MicroPrime Cine lens has a front diameter of 85mm, an 85mm push-on lens cap would not work with the lens. For a push-on lens cap to work, it would have to be slightly larger than the diameter of the lens on which it is to be used. The closest option in our inventory that may work would be the Schneider 86mm Push-On Lens Cap (B&H # SCLC85), though a lens cap that fits the filter threads such as the Sensei 82mm Center Pinch Snap-On Lens Cap, B&H # SELC82, may be a more accurately-fitting option.

Q: 8. does the 81.5 mm fit an 82mm step up? why 81.5mm?

A: I'd measure the outside diameter of the the step up with something accurate like vernier calipers or a micrometer. I purchased the 90mm push on Cap to fit a Schneider centre ND filter which I measured to be exactly 90mm outside diameter and the cap was a fairly tight fit.

Q: 9. Is the inside diameter dimension of this cap exactly 100mm?

A: I shrunk this lens cap in the oven to about 97mm to fit my Tiffen ND Filter nice and snuggly. Put it on wax paper and pop it in the oven at about 140 degrees C monitor it closely. Took about 10mins to shrink it! Stay close to the oven and make sure tou dont melt it though!

Q: 10. My lens filter is nominally 55mm. But a push on cap would have to be slightly larger, wouldn't it? Is the inside diameter of this cap 55mm (or 57mm) ?

A: Since it is made to fit on a lens that is 55mm in diameter (not to be confused with a lens having a 55mm filter size), the inside diameter of the Kaiser 55mm Push-On Lens Cap (B&H# KALC55) has to be just slightly smaller than 55mm so that it will bend just enough that it can still fit and also be snug but not overly tight.