Camera uv filters? Interchangeable or no?

I currently own a Promaster 67mm UV filter that's on my 18-135mm Canon lens, will that filter also fit an 18-105mm Nikon lens?

Any filter of a specific size will fit the lenses that use them

Since the 18-105 mm lens uses 67 mm filters, then yes, you can use that filter on your Nikkor 18-105 mm lens

Why you would own both Canon and Nikon lenses is something many of us would love to know. Are you supporting two different camera systems?

Each lens has a specific front ring size so probably not. Unless the 18-105 has the same front ring size as the 135, no.

UV filters are universal, they can be used on all lenses/cameras. But the problem is will the threads (67mm) filter fit your 18-105mm Nikon lens. Yes but it is a hassle. You would need a step down ring from 67mm to the filter size of the 18-105mm Nikkor lens. This is just impractical. The best thing which we all do is purchase a UV filter with the correct threads to fit each lens. I have two lenses in my Pentax DSLR gadget bag. Each lens has it's own UV filter. So you really don't want interchangeable filters from one lens to another. You want a filter for each lens The Uv filter also serves as a protection filter for your expensive front element. Replacing a filter costs $15.00 or less correcting a scratch on a lens can cost up to 90% of the original price of the lens in the first place.

You said 67mm. Does the other lens have a 67mm filter size? If yes, you can screw the UV filter there directly. If not and the filter is bigger, you can buy a step up ring to make it fit. If the filter is smaller but you want to force the issue and ignore vignetting, you can use a step down ring for that. The filter size of your lens is usually indicated under the lens cap if not printed on the front end of the lens indicated by the Greek letter Phi.

All filters, regardless of brand or size are camera brand independent.

What matters is the physical size of the filter - specifically the thread size. Filters come in many different sizes, and you must match the filter threads to the lens threads.

I'm not sure what the filter thread sizes are on each of your two lenses, but if they are the same, then the filter can be used on either lens. If not, you can buy a step ring in certain situations to adapt the filter to the other lens.

It seems many vendors on eBay, Amazon, and other sites are advertising their filters as "for Canon" and "for Nikon", which in fact is the same item. I don't know if they are doing that just as a search aid or an attempt at trying to get consumers to buy the same filter again.