Camera Lenses

Edmika 0.5mm Fd-eos Adapter For 200mm 300mm 400mm 500mm 600mm 800mm Canon Ef

   

   

   

The long awaited replacement to the edmika 0.75mm ef-fd glassless brass adapter is finally here! This is exactly what you need to take your white fd super telephoto lens and coupled with an easy and reversible focusing element position calibration achieve original lens performance on your canon dslr camera.

It will also bring the greatest focus distance from any other fd lens by minimizing the lens to sensor distance, effectively placing it at 44.5mm. In fact, i could make the claim that the adapter places the lens at 44.3mm since i found a way to squeeze an extra 0.2mm out of the original fd mount design by tightening tolerances and reducing a critical undercut dimension. Why dual orientation / bi-rotational? The extreme closeness this adapter gives you puts all aperture trigger levers into a contact position with areas of full frame and 1.3 crop bodies but not 1.6 crop bodies such as the 7d/60d/rebel.

So why did i make the adapter also work in the normal orientation as well? All the white super telephoto fd lenses (the fd 200mm 2.0l, fd 300mm 2.8l, fd 400mm 2.8l, fd 500mm 4.5l, fd 600mm 4.5 and fd 800mm 5.6l) have a rectangular area near the back to make room for the complex larger aperture lever mechanism that causes vignetting (darkened corners) on full frame sensors.

This darkened corner condition can be fixed easily in lightroom/aperture/photoshop but some people may still not want to be bothered with post process fixes. For these people we added a secondary notch at the end of the aperture holder mechanism in the normal orientation so that they can bend the lens aperture lever inward enough to prevent the contact condition. Those lucky 1d series 1.3 crop owners need not worry and just enjoy the rotated adapter position without any darkening issues in the corners because of the slight crop and the 1.6 crop body shooters can do whatever they want since either orientation works perfect and does no damage. The only compromise in this dual fd side orientation adapter solution is that for the older silver twist ring mounts you will have to use your thumbnail or fd lens cap to trigger the twist release mechanism since this new hybrid edmika fd-mount no longer triggers the release itself.

Micro 4/3rds 2x crop until a full frame mirror-less body comes out. The nex also does quite well with the longest super telephoto lenses apart from looking like a glorified lens cap on them but the 1d4, 7d put it to shame image quality and resolution wise in most shooting conditions. If you however are lucky enough to have a copy of the fantastic fl 55 1:1.2 lens, i have also developed a lens specific conversion kit for it. We now make these adapters 100% ourselves using a very high precision vertical cnc mill, lathe and cut-off-bandsaw at my father-in-law’s garage in a small town an hour north of toronto canada. This gives us the time we need to tweak our development process instead of the few hours we were given before by machine shops we had used in the past. This awesome fd-eos 0.5mm dual-position adapter solution is really is pushing the limits in just about any way you care to imagine because of this flexibility we have. As always my brass adapters are machined from a single solid puck of 360 grade brass. Because brass is softer than your camera flange and your vintage fd/fl lens promising not to damage your precious gear in any way but still strong enough to hold on through even heavy abuse. Because with brass we can maintain higher tolerances by not having to add the thickness variability of a coating process and because glue holding reporting chips holds well to bare metal but bonds poorly to coatings. Brass is really beautiful to work with and worth the material expense.

To overcome you can shoot video in manual or tape over the chip contacts. For details on how to calibrate the focusing element on the white super-telephoto fd lenses search edmika on youtube for the instructional video. I also have an article detailing the history of this specific adapter’s development on the website canonrumors. He also offers many lens refurbishment, tuning and cleaning services on top of conversions. I have found an example of a fd 300mm 2.8 l lens that did not quite reach infinity focus using the focusing element calibration i describe in the youtube video.

I personally inspected this lens and found there was significant thread tolerance differences between it and my own copy. For this lens that did not reach infinity the fix was to use a small circular file (or dremel tool) to elongate the calibration slots by less than 1 millimetre.

A sample of focusing distances using the edmika 0.5mm fd-eos (nfd, fd, fl)-(ef, ef-s) dual-orientation glassless brass adapter. Fd 85mm 1.2, 5 feet / 1.5 meters (still surprisingly useful for such a short focusable distance). Fd 85-300mm 4.5, infinity between 250-300mm when focus stop screw removed. Fd 200mm 2.8, 25 feet / 7.5 meters. Fd 200mm 1.8, unknown (infinity with lens calibration though i do not have a copy of this lens yet).

Fd 400mm 2.8l, 164 feet / 50 meters (infinity with lens calibration). Fd 400mm 4.5, 277 feet / 85 meters (near infinity with lens calibration but i do not have details on how).

Fd 800mm 5.6l, infinity (removal of stop screw in nfd version gear housing helps maintain infinity in low temp shooting â reportedly not needed in ssc versions).

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