Steve Spencer
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 p.22 #15 · Zeiss "Batis" AF lens line to be released for FF E-mount | |
Charlie N wrote:
the mod might be worthwhile anyhow with M mounts, and I may consider it myself, however 25 ZM vs 25 batis.... weight wise, only 70g difference, not including adapter, for 1 stop of light! The batis will be a fatter lens, however I dont think it's much longer. The size of the 25 batis seems really good.
as far as the 90, I dont know specs offhand, but I think the F2's were always in the 500g mark, which is batis territory once again. However, if I am wrong with the specs, a 300g lens would be quite the savings.
I would like to strive for a similar lightweight kit, however my stuff is scattered a bit with the EF rok 14 (688g adapted ND Throttle), FE 24-70 (covers my 24, 482g with hood and filter), Voigtlander 40 F1.4 (248g adapted), Zeiss ZE 2/100 (883g adapted), OM 200/5 (489g adapted)
There's quite a bit of weight I can save if diligent about it. The rok 14 can be switched out with a CV 15, FE 24-70 for 25 batis, although I like the zoom so may not do the swap. There is no ZM 2/100 as I use macro, and F2 for portraits and lowlight often. Maybe a leica macro @ F2.8? havent researched the topic yet, however I really would have a hard time giving up that F2 or close focus ability. Batis 85 over the ze 100 would be a good amount of weight savings, however I sacrificed a lot of focal length as is to make it to 100mm...... I hate thinking about these small decisions in gear....Show more →
The ZM will be just a bit over 8mm shorter with the adapter than the Batis, but will be about 28mm skinnier and that is a big difference. The weight difference won't be that large. This is generally what you find in comparing MF and AF lenses. The MF lenses are smaller and especially skinnier, but don't weigh that much less. AF lenses need to be fatter to accommodate the AF motor and need to be lighter to allow the AF motor to move the parts quickly. For my kit, I will just get one helicoid adapter so the weight of the adapter will be spread across three lenses (at first and more later) and won't add much when considered in that way.
The Batis 85 will be quite close in size to the Leica M 90 f/2 Pre-AA. They will weigh almost the same amount (the Leica weighs just a bit more but it has a built in hood, so with hoods they would likely have almost identical weights). The Leica will be just over 3mm shorter with the adapter, and 17mm skinnier. So again we see that the MF lens isn't much lighter, only a little shorter, but a lot skinnier. One of the big advantages of the Leica M 90 Pre-AA, however, that you should consider is that it may let you replace your Zeiss ZE 100 f/2 MP. I hope it allows me to replace mine. With the helicoid adapter and the Leica R Elpro 3 (which was made for the very similar optically Leica R 90 f/2) you should be able to get close to 1:2 magnification. I know that I really liked the Leica R 90 f/2 with the Elpro 3 as a close up lens, so compared to the ZE 100 MP the Leica 90 f/2 will be a lot smaller. In weight, length, and diameter. So, you might want to consider that option as you develop your kit.
Good luck.
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