Zeiss ZF will not be Upgradeable to ZF.2

<p>One human factor to be considered is consistency (provided that it's not foolish consistency, of course). So if a photographer is working with a mixture of manual and AF lenses it may be desirable to use the aperture ring to set the aperture on any of them, instead of needing to consider the currently selected lens to decide how to adjust the aperture. This may be desireable despite being mechanically more inconvenient.</p>

 

<p>John, I agree about consistency.</p>

<ul>

<li>Personally, my Nikon 24-70mm f2.8 (my number 1 "go to" lens) has no aperture ring and <strong>must</strong> be operated from the camera's aperture control. The 14-24mm f2.8 and 70-200mm f2.8 that round out my "event" bag (the 14-24 also being my number 1 for landscapes and architecture) also are without aperture rings. The Sigma 30mm f1.4 that is the most used lens on my D90 is also without aperture ring. Put it all together and the majority of my shooting is done with lenses that don't even offer the <strong>option </strong> of aperture ring control. So, "consistency" says that that's how I use the rest, whenever possible.</li>

<li>Globally, the last new AF lens with an aperture collar was launched back in 2002. For the last 7 years, all the new Nikon AF lenses have been "G" lenses. The odds are that any photographer using a mix of AF and MF lenses has at least one "G", and the ratio will only increase, the aperture collar is not making a comeback. </li>

<li>You brought up the concept of "foolish consistency". That's how I would describe using the aperture ring on lenses where this was not necessary. It's physically harder on the photographer, not only fatiguing, but actually potentially damaging to structures like the median volar nerve or the tendons in the carpel tunnel.</li>

</ul>

<p>Seems that we agree, Joseph. When I get some lenses that have no aperture ring, then I'll probably switch to the body control, when possible. Until then, all my lenses do have aperture rings, some of them are not chipped, and all of them are pretty small, so I like that the camera gives me a choice.</p>