Other Rear cap modification

David Stallard · Nov 17, 2024

Tim - please remove if not permitted.
So - we all know how frustrating it is that the RF rear lens cap will only fit on if you align the line on the cap with the red dot on the lens, after seeing this mod done on line I thought why not try it as the amount of times in the field I have missed a shot due to faffing with the cap on an extender or lens I can confirm THIS WORKS.

Look inside the cap and you will see three raised sections / tabs - take a sharp knife (I used box cutter) and carefully remove ONLY the largest one - see photo below. Now the cap will fit on in almost any position, I have tried differing scenarios to see if I can make it come off and it stays put.

Standard

Trimmed version

I appreciate not everyone will want or need to do this but if you need to swap out glass or extenders in a hurry or in the dark it's a game changer.

Dean Wilson · Nov 17, 2024

Well...there for the rear cap Warranty

David Stallard · Nov 17, 2024

For the price of a new cap 'if' I was ever sell - worth it.
Have only done it on my extender caps as they are the ones that need changing in a hurry

Kamoshika · Nov 17, 2024

I saw that hack in a Jan Wegener video two days ago. Tempting, but honestly, I haven't found this minor cap frustration much of a problem.

Photofarmer · Monday at 1:01 AM

Kamoshika said:
I saw that hack in a Jan Wegener video two days ago. Tempting, but honestly, I haven't found this minor cap frustration much of a problem.

same i have flourescent paint and a tiny bit of tape for feel non issue as well

Chris Summers · Monday at 4:26 PM

I do find it a bit frustrating that Canon engineers opted for this one position for putting on the rear cap and surprised some Chinese company hasn't made a replacement cap that doesn't have to be put on in one position. When I am chasing the light to get a shot and change lenses, to be honest, I often don't bother with the rear cap as I set the lens into the cushioned compartment in my bag. After the shoot I clean up and organize the gear in the bag.

And I agree with the lack of red mark on the rear cap and even the dull red on the rear of the RF lenses. I applied some bright red nail polish to the mark on the rear cap. As I approach 70, I find my eyes struggle with dark objects in low light.

Chris Summers · Tuesday at 3:28 PM

Found these aftermarket caps that are 3d printed and have the bayonet modified to let the cap go on in any position. He sells them in black, red or white. He says the idea of a bright cap is to find it in your bag quicker.

https://www.etsy.com/listing/1733889032/canon-efrf-dust-cap-3-pack?variation0=4565870740

Only RF · 2024-11-23T04:55:47+0000

The other day I was looking for something else and found this. Then today I came across this thread.

- YouTube

Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.

www.youtube.com

Jake Shoots Birds · 2024-11-23T12:10:13+0000

Interesting that there's nothing showing the inside of the aftermarket cap. What bothers me most about this mod is something Jan showed, where in one of the 3 orientations the cap can be pried up a bit. I've had more than a few incidents where some completely insane arrangement of gear and gravity causes something to get pulled out of my hands and to the ground, and all I see with that is another available insane arrangement.

There has to be some combination of 3 trimmed ridges that would allow 3 orientations but I'm just not motivated enough to try it. Silver sharpie has been enough for me to see it, and yes it's a pain on the extenders, but not worth the hassle for me.

David Stallard · 2024-11-23T13:37:06+0000

Jake - I tried to pull the cap off in all orientations and trust me - it you can get it to 'knock off' accidently then your going to damage a lot more than a lens cap ;-)
As I said, it wont be for everyone but for me it really has made a difference, especially trackside where I need to swap out in a hurry.

Only RF · 2024-11-23T15:00:27+0000

If I was still shooting events I’d likely do it. My wife donated an old bottle of red finger nail beautifying paint. Takes a second longer but I’ve gotten used to it.

MSH411 · 2024-11-23T15:21:58+0000

Chris Summers said:
Found these aftermarket caps that are 3d printed and have the bayonet modified to let the cap go on in any position. He sells them in black, red or white. He says the idea of a bright cap is to find it in your bag quicker.

https://www.etsy.com/listing/1733889032/canon-efrf-dust-cap-3-pack?variation0=4565870740

I have some on the way. For the price I figured they are worth a try and I just wanted to see white on white with some of my lenses for fun.

Only RF · 2024-11-23T16:25:17+0000

I once had an 400 DO F4 II. Nice lens and I wish I could have kept it. Spectacular lens. Since ML bodies could AF at f8 I had to sell it to maintain my salary cap.

The lens hood was huge and a real pain to transport, for me anyway. For local transportation I purchased a plastic tool box.

After selling the lens I got a smaller one for my 100-500 and TC. The TC is there. Strap is hiding it.

Someone on another site suggested this gun bag. What I like about it is that it is top load and zips up easily at the top. If I forget to zip it up the gear won't fall out.That happened to me about 15 years ago with a backpack style bag. My EF 70-200 f4 IS was only 2 weeks old.

I take this to Portugal every year. I pack it inside the big suitcase and fill with cloths, etc. So much easier to just pull the gear out and start shooting. I cut out some of the inside compartments the are specialized for ammo, etc. I use that removable bag to store miscellaneous camera gear like filters, etc. It stays at home.

https://www.amazon.ca/dp/B01BDW1VHE?ref=ppx_yo2ov_dt_b_fed_asin_title

This past 6 months I decided to stop using the TC when the 100-500 is on the R7. Since I shoot wildlife with that body 80% of the time I'm getting a shorter bag - for non local travel. If I have the TC on with R6II I'll just take the lens hood off.

https://www.amazon.ca/Smith-Wesson-Tactical-Resistant-Accessories/dp/B01BOUGFKI

Only RF · 2024-11-23T16:28:09+0000

One thing I like about those bags. Very well made and ⅓ the cost of a specialized photography bag like Think Tank, etc would offer.

Jake Shoots Birds · 2024-11-24T13:03:29+0000

David Stallard said:
Jake - I tried to pull the cap off in all orientations and trust me - it you can get it to 'knock off' accidently then your going to damage a lot more than a lens cap ;-)

And that's kind of my point based on what I saw in Jan's video. If there's a way to get it to pull away in one orientation then something, some way, some day, will find a way to do it, and that's not going to be good for the lens mount. That's not me telling anyone it's dangerous, that's just me saying that it's not enough of a pain for me to make me do it, even if the risk is nearly infinitesimal.

Other Rear cap modification

David Stallard

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Dean Wilson

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David Stallard

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Kamoshika

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Photofarmer

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Chris Summers

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Chris Summers

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Only RF

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- YouTube

Jake Shoots Birds

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David Stallard

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Only RF

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MSH411

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Only RF

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Only RF

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Jake Shoots Birds

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