topic Re: EF to EF drop in filter adapter? in Camera Accessories

EF to EF drop in filter adapter?

truelies — Tue, 15 Oct 2024 13:54:26 GMT

I think this is the best solution on filters for all EF lens, don't know why canon haven't make an adapter between lens & body like EF-RF?

Re: EF to EF drop in filter adapter?

kvbarkley — Mon, 14 Oct 2024 13:34:13 GMT

Because if you move the lens away from the body you lose infinity focus.

Re: EF to EF drop in filter adapter?

ebiggs1 — Tue, 15 Oct 2024 14:44:50 GMT

"Because if you move the lens away from the body you lose infinity focus."

\Well if the lens was designed to use drop in filters it would work and not affect focus. However the reason for drop in filters is cost. There is not cost benefit for a lens that uses a smaller relatively cheaper front filter vs a very much more expensive drop in filter drawer and filter assembly.

Probably the most used and necessary filter in today's world is the polarizer. Using a drop in filter makes designing them and using them more complex and expensive. Add to that, the fact that most all filters are obsolete today.

Re: EF to EF drop in filter adapter?

kvbarkley — Mon, 14 Oct 2024 14:46:45 GMT

He is talking about an adapter - much like a teleconverter - that you can place between *any* EF lens and the camera body to use drop in filters. So these lenses are specifically *not* designed for drop in filter use.

Re: EF to EF drop in filter adapter?

ebiggs1 — Mon, 14 Oct 2024 15:11:45 GMT

Oh, OK thanx, for the info. I will stick by this statement though, "Add to that, the fact that most all filters are obsolete today."

Re: EF to EF drop in filter adapter?

kvbarkley — Mon, 14 Oct 2024 15:36:07 GMT

You can stick by that. 8^) I also am not sure why the OP wants a filter.

Re: EF to EF drop in filter adapter?

truelies — Mon, 14 Oct 2024 15:53:21 GMT

Seems canon ef-rf drop in works very well

Re: EF to EF drop in filter adapter?

kvbarkley — Mon, 14 Oct 2024 16:13:53 GMT

Because the flange-to-sensor distance of the RF mount is less than the EF mount an EF - RF adapter has more room to work with.

Teleconverters have optics that can compensate, a drop-in filter adapter does not.

Re: EF to EF drop in filter adapter?

truelies — Mon, 14 Oct 2024 16:30:29 GMT

Why want a filter, Are you joking?

For distance matter, I think Canon can do research on this optical physics problem

Re: EF to EF drop in filter adapter?

normadel — Mon, 14 Oct 2024 17:20:24 GMT

Since you haven't provided picture or link to what adapter you are thinking about, we don't know what you mean.....a holder between lens and body, or a filter holder attached to front of the lens?

Re: EF to EF drop in filter adapter?

kvbarkley — Mon, 14 Oct 2024 17:33:26 GMT

He wants an adapter to go between an EF lens and EF body which has a drop in filter holder. Like this EF to RF adapter:

Re: EF to EF drop in filter adapter?

AndyMc — Mon, 14 Oct 2024 21:04:06 GMT

Depends what you're doing. For my typical photography, filters are VERY important.

No one is staying that everyone needs to use filters, but for some people they are indispensable.

Re: EF to EF drop in filter adapter?

ebiggs1 — Tue, 15 Oct 2024 14:48:52 GMT

"For my typical photography, filters are VERY important."

For instance like what? Excluding the polarizer, as mentioned, and possibly an ND, I am curious of your "VERY important."

Re: EF to EF drop in filter adapter?

normadel — Tue, 15 Oct 2024 17:38:01 GMT

ebiggs1.....Why do you need to argue about the poster's desire to use filters?

Re: EF to EF drop in filter adapter?

AndyMc — Mon, 21 Oct 2024 12:28:30 GMT

I do a lot of astrophotography. Filters can make or break your ability to capture certain objects.

Re: EF to EF drop in filter adapter?

Kla3271 — Fri, 04 Apr 2025 15:14:36 GMT

I do astrophotography. I use 2inch dual narrowband filters to cut out light pollution and moonglow. I also use CLS and quad-band filters for light pollution. While the 2inch filter can easily screw into my telescope, and most telescopes in general, I am also trying to find a drop-in filter drawer that will mount to my T3i which has an EF mount and allow me to connect my EF lenses. There are plenty that adapt from EF mount on the body to other lens mounts or that connect EF lens mounts to ZWO cameras. Just because some of us have different needs for photography, we dont need any of your dismissive and arrogant responses. We are just looking for advice and checking with a community that may be more knowledgeable than we are. We are very aware that astrophotography is a very specialized and niche (and expensive) field of photography. It is hard enough as it is, and we shouldnt be interrogated based on your feeling of superiority and disbelief. I mean jeez, you are such a guru of photography, how could anyone need something that you dont. I am sure you are the gold standard of photography, but you can just give us advice if you want or say you dont know or not even respond. I hope this answers your question of why anyone would need filters, since YOU dont use filters.

Re: EF to EF drop in filter adapter?

AndyMc — Fri, 04 Apr 2025 17:39:52 GMT

Unfortunately there's not going to be anything that can go between an EF mount body and an EF lens that can hold a filter without changing the optical properties of the lens. Even then, the only things are the EF extenders and they don't hold filters, as I'm sure you're aware. EF lens to RF body, sure, due to the differences in the flange distance requirements for each mount.

Your best option to use filters on an EF body with an EF lens is clip-in filters.

Re: EF to EF drop in filter adapter?

ebiggs1 — Sat, 05 Apr 2025 17:19:00 GMT

Not arguing but for the large part and in fact filters are obsolete. So if there is no real purpose you don’t need them. Except for a very limited situation Photoshop can do the same effect and do it even better

Re: EF to EF drop in filter adapter?

Kla3271 — Sat, 05 Apr 2025 19:06:42 GMT

Ok. Thank you. I had purchased a 2 inch dual narrowband filter and was hoping i could find a way to use it with 135mm lens, but oh well. I reckon my lenses will just have to stick with my clip in CLS filter.

Re: EF to EF drop in filter adapter?

normadel — Sat, 05 Apr 2025 23:46:28 GMT

Not everyone has, needs, or wants Photoshop. If a simple drop-in filter can provide a special effect, right on!