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Message:: [QUOTE="benveniste, post: 2663329, member: 25547"]"Severely limits" is more than a little bit of an exaggeration, as were your claims about working distance.  In fact, the diameter of the 105mm is no larger than the size of the front plate of a PB-4 or the Vivitar bellows.  The size of the camera body is also a factor.  So perhaps you should post a shot of a lighting setup you can achieve with a bellows that you can't with a 105mm VR.  Nor is your claim that the 105mm causes the system to "sag" justified.  When used flat on a tripod, the center of mass is a bit off from the ideal, but the neither the lens nor camera deflects.  The mount also copes with the weight easily.  Nor is using a bellows on a tripod without its challenges.  First, not all bellows have movable tripod mounts.  My PB-4 has one, as does the PB-6, but at least some from Pentax, Minolta did not, nor do the Fotodiox and no names sold on eBay.  Second, when you mount a bellows on a tripod and use it to shoot at typical magnifications for coins, you end up with the back of the rail pointing back towards you where it's easily jostled. When using on a copystand with the lens pointing down, there's actually less stress on the stand when using a macro lens because the overall weight is less. I don't know too any hobbyist who dedicates a dSLR to coins -- I certainly don't and you've already stated that you don't either. I understand that you prefer a bellows setup, and you think it works better for you, and I'm fine with that.  Different tools suit different artisans.  But please try to present a fair picture rather than resorting to such exaggerations to "sell" your approach.[/QUOTE]

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