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philip_pj wrote:
After this big read, surprised to find reviews (apart from Phillip's which directs people here) that do not mention the TAP wobble and rather Rube Goldberg inner workings of the adapter. It's a very important product concept for mirrorless (now and near future) so it's sad to hear they are not assigning TAP its due priority. I'm good with a dumb adapter/EVF but my partner is not a natural MF person, and we use 100/3.5, 28/2.8 and several others, all under 300g.
A beefed up 200g v2 would be superb, the 133g v1 is obviously aimed at minimizing weight. They need to work towards much better engineering MCBF (Mean Cycles Between Failure) for 'in scope' lenses. Someone else will, surely since the adapter concept enables whole ranges to AF and seems quite extensible.
As for TAP weight limits, how about a Nikon 400/3.5, lol. SAR has this video today with the pod-mounted lens in front of his a7rIII with, according to him, good results. I guess the rear of the adapter may be stronger but the bare body is 650 grams or so. It's odd to watch the body slide back and forth.
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Your points are well made. As you point out, whereas "the TAP wobble and rather Rube Goldberg inner workings of the adapter" are discussed comprehensively in this thread, I've yet to see a "review" that mentions these issues. The only information concerning photo equipment that I now trust are the reviews/articles on Phillip's site and reports on this site from certain members. I have three copies of the TAP and haven't encountered the wobble yet but that's because a brief experiment with the Distagon C/Y 35/1.4 convinced me that the 700g weight limit was wildly optimistic. From that point on I restricted my use to lenses that weigh no more than 300g (including any secondary adapter). Jim Buchanan's post earlier in the thread suggests that a helicoid (rather than the two lower axels) would solve the problem. I've wondered whether an additional two upper axels might be adequate to stop the droop that leads to the wobble.
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