Focus stacking is a great feature for the landscape photographing. Since Z7 has 493 AF points, does this mean that Z7 can do better job on focus stacking than what D850 does? Does anyone compare the focus stacking on Z7 vs D850? Thanks.
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Focus stacking with Z7
- Thread starter jh82
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- nikon d850 nikon z7
SrMi
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The number of focus points should not matter for focus shift shooting (aka focus stacking).
Once you acquire the initial focus (MF or AF), focus shift shooting moves the focus further and further away without using any additional focusing step.
I have not done much testing, but I do not expect any difference in D850 vs Z 7 focus shift shooting.
Ke Liu
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Didn't do side-by-side comparison while switch, but one thing I noticed though, is the focus step width is much shorter than I experienced ( or at least in my memory ) on my old D850.
Per memory, I can do focus stacking from half-meter to infinity with step width 6 with around 5 shots, but now on Z7 even with step width set to 10, I need much more shots from half-meter to infinity.
Not sure if it's due to the lens difference or else. I was using Tamron lens on D850 but now S-line kit lens on Z7.
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Photo album @ https://500px.me/keliu
Per memory, I can do focus stacking from half-meter to infinity with step width 6 with around 5 shots, but now on Z7 even with step width set to 10, I need much more shots from half-meter to infinity.
Not sure if it's due to the lens difference or else. I was using Tamron lens on D850 but now S-line kit lens on Z7.
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Photo album @ https://500px.me/keliu
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That is interesting, thanks for sharing. I would never thought that this would happen. My original thought was that because Z7 has much more AF points than D850 does, it may help to pick up an initial focus point from almost anywhere from the frame without worried about whether it is a right AF point. I would expect that the focus stacking may be more accurate in Z7 than D850.
Ke Liu
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No it doesn't work that way. It's stacking from the nearest to the infinity. Each other shot it takes, the lens focus shifts forward with the 'step width' you set on the cam. So it required the cam/lens in AF mode to do the focus movement. How many focus points you can select on camera don't matter at all.
Ke Liu
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Each shot is a shot, no difference to your regular shot. The stacking, as far as I know, have to be done in PP. Although I kinda remember Z might be producing stacked JPEG in cam but I don't get that myself, not sure if it's not enable or I only shot RAW
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Photo album @ https://500px.me/keliu
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Photo album @ https://500px.me/keliu
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Ke Liu
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Simple, I don't do wildlife/sports so I don't need super fast FPS, nor AF tracking. Sharing the same sensor, but more compact, lightweight, foreseeable better future Z mount, I don't see the reason not to. Not to mention I start liking shooting streets, smaller the better. Oh, also, I'd like to sell the F mount gears while they still holding some value
So in the past 2 month with Z, I'm more happier with D, I got more time go out with the small Z fit in my busy backpack, and more easier to take picture for my few month old son while one hand holding him and another hand with Z. All and all the D850 is merely too 'heavy duty' to me, after all I'm a short slim guy
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Calculating the Nikon Z7 FSS step size - the last word
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22 um vs 25 um is probably within experimental error.
You can pick the initial point using AF or MF.
I'm not sure how the term "accurate" fits with FSS. Do you mean that the steps are all the same size?
SrMi
Veteran Member
You merge the images in PP.
SrMi
Veteran Member
Some cameras do merge the images to a JPG, but typically with a limitation on the max number of images. Nikon cameras do not merge focus stacked images, you must do it in PP.
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Sorry, what I tried to say is that all D850 AF points are centered in the viewfinder where Z7 AF points cover 90% of viewfinder. For example, if I want to do a focus stacking, and pick an initial AF point at a far right corner of viewfinder. In D850, this far right initial AF point may be already out of D850 AF point zone but in Z7 this initial AF point may still within AF point zone because it has bigger cover area, which mean that I may get more accurate focus in Z7 than D85 on this far right initial AF point. is it right?
If you mean that, using AF, the first picture will be more accurately focused if you can use AF on the object you want in focus in the first picture, that is undeniable.
SrMi
Veteran Member
Unless you use rear LCD with CDAF, correct?
Sure. That case is indirectly covered in the way I formulated the above sentence.
Ke Liu
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Lens' factor then. I never used Nikkor lens on my old D850, Tamron all the way.
P.S. - your website isn't accessible for me, it always redirected me to google front page. Don't know why.
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