Steve Spencer
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 p.1 #11 · Compact fast lenses for a7cr | |
luisdent wrote:
I'm considering trying sony coming from fuji x system. I want so badly to keep things as close the the xt5 size with 18 1.4 and 33 1.4 as a baseline for quality.
I can't seem to find similar lenses (28/50) with decent apertures (say 1.8 minimum) that come close to the fuji in size. Can anyone recommend any that i might be missing? Or is it a pipe dream to get close to the same size? I know it's "possible" because i currently have a leica q3 and it is small and full frane with a killer lens. But it's all one unit and not cheap. (And i may not keep it as it would fund the sony)
I like the a7cr as well, i assume that's the smallest full frame sony? ...Show more →
The answer is there aren't lenses exactly like those two for full frame on Sony or really any other platform. The issue is that Sony builds their best lenses (i.e., the GM lenses) to have shallower depth of field (i.e., a larger entrance pupil) across their top line of lenses and then builds their G lenses to be small but with less depth of field capabilities and a narrower aperture than the Fuji's. Those are two of Fuji's top lenses with really good optical correction, great close focus performance with a floating elements design, good weather resistance/sealing, and their top linear motors. Nikon makes a series of f/1.8 lenses in their professional S line, but these lenses are bigger than the Fuji's, but probably come closer to what you want.
This general problem that Sony builds their best lenses with shallower depth of field capabilities and with a large size and their G lenses with less capabilities but a smaller size is compounded by very few lenses with a 28mm (i.e. 18mm on APS-C) field of view made for FF mirrorless mounts in general and Sony in particular.
That said, these lenses will get you somewhat close to the Fuji's capabilities.
At 28mm on Sony:
Like I said there isn't much at this focal length, but you might consider the Viltrox 28 f/1.8 or the Sony 28 f/2. Neither is in the league of the Fuji 18 f/1.4 and neither has the floating elements design or linear motor of the Fuji, but they are as close as you get for now on Sony E mount. If you can live with manual focus the Voigtlander 28 f/1.5 comes in E mount and is a nice lens, but obviously doesn't have a fast focus motor and doesn't have a floating elements design although the close performance isn't too bad.
That leaves you with going with a 24/25mm or 35mm on Sony. At 25mm an interesting choice would be the Zeiss Batis 25 f/2, which has really nice optical correction and good AF and is light weight, but is bulky in size. There is also the Sigma 24 f/2 Contemporary, but that is basically the full frame version of the Sigma 16 f/1.4 Contemporary that is available for Fuji and coming from Fuji you may not feel that is very close to the Fuji 18 f/1.4. Many Fuji shooter don't think the Sigma is that close and there are differences. Being in the Sigma Contemporary series the 24 f/2 is typical for that series in being fairly sharp, but it lacks the weather sealing, the top line focus motor, the aperture ring, and the floating element design (with the real good close focus performance) of the Fuji. Sony also makes a 24 f/2.8 G series lens, but that has noticeably less shallow depth of field capabilities than the Fuji especially so as it is a wider field of view.
At 35mm there are even more options. You might consider Sigma again which has a 35 f/2 Contemporary that is the FF equivalent of their 23 f/1.4 Contemporary for Fuji APS-C. Much the same applies to it as the 24 f/2, but that in addition that lens has IMO particularly nice bokeh, but does not have anywhere near the close focus performance of the Fuji. Sony also makes a 35 f/1.8 that has a top line linear motor and is very sharp and is nice and small, but it doesn't have weather sealing or control CA nearly as well as the Fuji. Sony also makes a nice 40 f/2.4 G series lens, but that is quite a bit different from the perspective of the Fuji 18mm.
At 50mm on Sony:
There are more options to compete with the Fuji 33 f/1.4 on Sony. Still there isn't anything exactly like it. Sony makes a quite nice Sony/Zeiss 55 f/1.8 that is actually a little smaller than the Fuji. It is a sharp lens and has good linear motor, but has considerably more CA than the Fuji, and doesn't have the close focus performance. There is also a Sigma 50 f/2 Contemporary that is a nice lens but has the same issues as the 24 and 35 in this series. There is also a 50 f/2 Viltrox Air that is much like the 35 f/1.7 air for Fuji. A very nice sharp lens and very inexpensive for its quality, but lacking the focus motor, floating elements design, and build quality of the Fuji. Sony also makes a very nice 50 f/2.4G, that is small, performs well, and has a nice linear motor. It might be the closest to the Fuji 33 f/1.4, but it doesn't quite have the shallow depth of field capability of the Fuji.
IMO, you will find options on Sony, but you won't find anything quite like the Fuji lenses on Sony. You will get to use the lenses you do find, however, with a bigger and in several ways better sensor and depending on the camera you will get a bit better AF with Sony, so it is a tradeoff. Good luck as you try the new mount.
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