Re: Sony FE 24mm f/1.4 GM Lens Big Bronco testing thread plus more
GMPhotography wrote: naturephoto1 wrote: GMPhotography wrote:
Yes that is normally very true. It tends to be the slower the lens the more DOF can be acquired by aperture. Also the higher the quality of the lens will also affect the DOF and be shorter . Case in point those very expensive Rodenstock tech cam lenses they would diffract at F5.6 which was a nightmare trying to get DOF off of them. Focus stacking is a big part of MF shooting because of that and here in 35mm land we will run into that as well. The Loxia's typically are great or hit there best aperture at about F8 than they start to slide. Im guessing here on this Sony being corrected well at 1.4 that at F8 its already sliding. Need to look at the Raws here and see where this maybe happening on the Sony. Now just because it diffracts does not mean its bad but in real world you need to be aware that okay if your in the field and you know your starting to slide because you need that DOF and focus stacking is out maybe becuase of wind lets say than you need to accept this. Its not always worst case but just knowing this stuff will help you make decisions in the field. Its really one reason I test lenses is to know where the bad things can come up
Hi Guy,
For LF camera lenses at least in the past and with technical cameras offering tilt such as with the Cambo Actus line of cameras you can also use tilt with the appropriate lenses to try to maintain focus along a plane and in an effort to use larger apertures (as in f5.6 vs f8).
Rich
Absolutely and even back in the hey day of 4x5 that was the real solution was using tilt on the standards to grab as much DOF as possible by tilting the lens the way of the area . Usually down
On My MF tech cam I had the Combo so it was not on the body but you can buy the lens that had built in Tilt in them. Usually about a grand more. I had it on my 60mm and 90mm lenses and passed on like my 28mm since that one is very wide
Here is where Sony needs to throw some attention like Canon and giving us some T/S options
Hi Guy,
That may be true regarding Sony and T/S lenses, but like Fujifilm for APS cameras and their GFX 50 and the soon to be released GFX R, Sony can rely on using the camera with a large assortment of lenses at least down to 28mm (and if you wish T/S Canon and Nikon lenses) use these cameras with the Cambo Actus line which will offer Rise/Fall, shift, Tilt, Swing, and if you add one of the Tilt kits even more capabilities when needed.
Rich
Oct 31, 2018 at 07:31 AM
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