Back when I'd frequent FD gear forum there was a guy who made himself a Zero thickness FD to Eos mount adapter. He took a FD camera mount and machined off the outer metal and then pressed it into a Eos lens mount that also had its extra un needed metal machined off. No glue or adhesive was used.
He made one a few years back, posted several pix and then disappeared.
Since then, I've picked up 3 old FD camera mounts taken from dead FD cameras, I bought them at local camera shop for $5 each & I have scrapped lens' eos rear lens mount bought off e-bay that set me back $10.
His Zero thick adapter would have lacked the aperture engager that you have designed into your adapter as I recall from his images. But I have noticed the Chinese are installing a screw thru the side of their 1mm adapter to get this aperture engagement.
Anyways, do you sell your .75mm adapter without the chip installed ?
I have not used chipped adapters on my 5D.
Have you used your adapter on a full frame, full size mirror dslr?
I ask cause I wonder about the FD lens aperture levers cluttering the full frame eos mirror box & interfering with the mirror's function.
Ed Mika wrote:
The latest Gen5 version of the EdMika EF-FD 0.75mm brass glassless adapter will be back on eBay within a day or so, I have the first two parts in my hand to take pictures of at this moment. It will get your FD800mm 5.6L beast (and the FD 600 4.5 and 500 mirror) focusing to infinity on any Canon EF/EF-S mount camera body (SLR and DSLR) without permanent modification of any kind. Save the beautiful vintage gear from obsolescence and vulgar permanent modification. Also I am a week away from releasing a FL 55 1.2 EF-S conversion kit that you yourself can use to non-destructively and reversibly convert the wonderful plentiful and low cost f/1.2 FL mount lens to EF-S mount (EF works too but to infinity focus you have to shoot in live preview to prevent mirror hit) in 5 minutes with all tools and fasteners provided....Show more →
If I loose 20 kg weight, and hold that 1/2 year, I will buy a FD 800/5.6L for some 1500 Euro as a kind of gratification.
And you find that lens for 5 USD - I am shocked!
Congratulations! I would suggest the Ed Mika adapter and a full format camera - to use most of the coreccted image area.
I have made zero thickness FD to EOS/EF/EF-S adapters but they do not fit with my overriding idea of keeping the vintage gear original and undamaged. One would have to shave down the aperture lever of an FD lens to prevent it from embedding itself into the plastic portion of the electrical contact face of your EF camera and it still puts the lens 2mm away from original lens design spec of 42mm since EF is 44mm so it would not be a universal solution for all FD lenses, just the longest ones. So really there is no big advantage between "zero thickness flange adapter" 44mm lens to sensor distance and the EdMika EF-FD 0.75mm's effective 44.75mm distance but there is between 44.75 and 45mm because you lose infinity focus on the longest 3 lenses somewhere above 44.8.
The aperture lever finger I have in my design handily utilizes the same platform/ledge that I already have in the adapter to mount the af-confirm chip. The chip is not just for focus confirm but I find that my 1D4 and 7D both meter erratically (usually too high exposure) without the chip and very accurately with the chip so I don't plan on selling the adapter bare.
My adapter will allow use of any FD lens on your 5D without mirror interference and will allow you to achieve infinity focus on the 500mirror, 600 4.5 and 800 5.6 lenses as well as infinity on the surprisingly sharp FD / nFD 85-300 f/4 zoom between 250-300mm.
Mr.Lindy wrote:
Neat item you're making EdM.
Back when I'd frequent FD gear forum there was a guy who made himself a Zero thickness FD to Eos mount adapter. He took a FD camera mount and machined off the outer metal and then pressed it into a Eos lens mount that also had its extra un needed metal machined off. No glue or adhesive was used.
He made one a few years back, posted several pix and then disappeared.
Since then, I've picked up 3 old FD camera mounts taken from dead FD cameras, I bought them at local camera shop for $5 each & I have scrapped lens' eos rear lens mount bought off e-bay that set me back $10.
His Zero thick adapter would have lacked the aperture engager that you have designed into your adapter as I recall from his images. But I have noticed the Chinese are installing a screw thru the side of their 1mm adapter to get this aperture engagement.
Anyways, do you sell your .75mm adapter without the chip installed ?
I have not used chipped adapters on my 5D.
Have you used your adapter on a full frame, full size mirror dslr?
I ask cause I wonder about the FD lens aperture levers cluttering the full frame eos mirror box & interfering with the mirror's function.
I've sold off my longer FD glass but still own a bayonet mount FDn 400mm 4.5.
What do you think, is infinity possible with 400mm 4.5 ? As it is I only get about 30 feet of crazy sharp focus when adapted to eos with a common fatter adapter.
My FD 400 4.5 does not get infinity focus but goes about 200-300 feet with the EdMika EF-FD 0.75mm brass adapter. I've tried to hack the lens to find a focus stop or something and have not been able to.
Mr.Lindy wrote:
I've sold off my longer FD glass but still own a bayonet mount FDn 400mm 4.5.
What do you think, is infinity possible with 400mm 4.5 ? As it is I only get about 30 feet of crazy sharp focus when adapted to eos with a common fatter adapter.
On the programing of the chip, if I got one could it be programed as 400mm 2.8 ? Instead of 400mm 4.5. That way I could use my 1.4x or 2x Canon made Eos TC's, if I understand how this chip set works.
Thanks for quick replies. I used F-1 & FD for years thru 2002 when I bought into Pentax System instead of Canon Eos.
I still own some of my FD kit.
I eventually forgave Canon Corp for the abandoning FD System in 1996 and I then bought into Canon Eos by getting a 5D classic & a few USM lenses three years ago. Speedy USM AF is a joy, even with a center point only 5D. Adapting manual focus glass to Eos 5D is fun too.
I do wonder if I should just cash out of my tack sharp US NAVY 400mm f4.5 nFD & add a few hundred bucks & get a Canon 400mm 5.6L instead of cobbling my old lens to eos mount. Except for this $5 800mm 5.6L thread example, my FD glass has rebounded in value compared to a few years ago, prior to m4/3 launch.
Personally I'd pony up for the EF 400 5.6, I find the FD 400 4.5 having more purple fringing than many of my telephotos. The autofocus is obviously handy too.
And how is your dandilion chip "reprogamable in camera" ?
I'm completely clueless about the various chips used on adapters, is dandilion the best ?
Focus distance I get with the nFD 200mm 2.8 is exactly 25 feet, 3 inches or 7.7 meters.
The chip is programmed on your camera by putting it into program mode by taking a exposure of longer than 11 seconds within 3 seconds of mounting lens to the camera, then taking a picture at various aperture settings controls different things like reported focal length, lens aperture, if the lens is set to autofocus or manual (will not take a picture until camera phase detect identifies that an object is in focus) micro adjustment for focus spot position etc.
The dandelion gen4 is the best of about 6 chips I tested.
