DX lens on Z 6ii

[brucet]

Apart from the crop factor what are the disadvantages of using a DX lens on A Z 6ii.

 

[shuncheung]

Apart from the crop factor what are the disadvantages of using a DX lens on A Z 6ii.

You will be stuck with the DX crop. Hopefully that gives you a desirable angle of view. And the 24MP Z6ii becomes about 10MP, which is OK for a web post or email, but that is pretty low.

 

[brucet]

Apart from the crop factor what are the disadvantages of using a DX lens on A Z 6ii.

You will be stuck with the DX crop. Hopefully that gives you a desirable angle of view. And the 24MP Z6ii becomes about 10MP, which is OK for a web post or email, but that is pretty low.

Sorry. I should have been more specific. I understand the crop/mp issue. I'm more concerned about any quality issues.

 

[shuncheung]

Apart from the crop factor what are the disadvantages of using a DX lens on A Z 6ii.

You will be stuck with the DX crop. Hopefully that gives you a desirable angle of view. And the 24MP Z6ii becomes about 10MP, which is OK for a web post or email, but that is pretty low.

Sorry. I should have been more specific. I understand the crop/mp issue. I'm more concerned about any quality issues.

What quality are you concerned about? That depends on exactly which DX lens you use. And is 10MP sufficient quality? 15 years ago, I used the 12MP D300 and D700 a lot, and 12MP was ok.

Generally speaking, when I buy an FX body, it doesn’t make sense to use DX lenses. But for example, the only fisheye lens I have is the 10.5mm DX, such that I occasionally use that on an FX body.

 

[MCLV]

Apart from the crop factor what are the disadvantages of using a DX lens on A Z 6ii.

You will be stuck with the DX crop. Hopefully that gives you a desirable angle of view. And the 24MP Z6ii becomes about 10MP, which is OK for a web post or email, but that is pretty low.

Sorry. I should have been more specific. I understand the crop/mp issue. I'm more concerned about any quality issues.

You will also get IQ corresponding to DX camera.

 

[brucet]

Apart from the crop factor what are the disadvantages of using a DX lens on A Z 6ii.

You will be stuck with the DX crop. Hopefully that gives you a desirable angle of view. And the 24MP Z6ii becomes about 10MP, which is OK for a web post or email, but that is pretty low.

Sorry. I should have been more specific. I understand the crop/mp issue. I'm more concerned about any quality issues.

You will also get IQ corresponding to DX camera.

Thanks. That's the information I was looking for. Is there somewhere I can see tests that show what the IQ loss would be? I'm ok with the 10mp size as long as that is a quality 10mp.

I have a DX Tamron 16-300mm lens that I may want to use occasionally on a Z 6ii. The Nikon Z 24-70mm would be my work horse until some money comes my way!!

 

[MCLV]

Apart from the crop factor what are the disadvantages of using a DX lens on A Z 6ii.

You will be stuck with the DX crop. Hopefully that gives you a desirable angle of view. And the 24MP Z6ii becomes about 10MP, which is OK for a web post or email, but that is pretty low.

Sorry. I should have been more specific. I understand the crop/mp issue. I'm more concerned about any quality issues.

You will also get IQ corresponding to DX camera.

Thanks. That's the information I was looking for. Is there somewhere I can see tests that show what the IQ loss would be?

It would be around one stop. Just switch to DX mode and try it by yourself.

I'm ok with the 10mp size as long as that is a quality 10mp.

I have a DX Tamron 16-300mm lens that I may want to use occasionally on a Z 6ii. The Nikon Z 24-70mm would be my work horse until some money comes my way!!

 

[jthomas39]

I occasionally use DX mode on my Z6.

Advantages:

Just the image area is in the viewfinder, to see it better and to have the AF and exposure applied just on that area.

Disadvantages:

I have to carefully frame the scene. I often output my edited images at 3840 wide. The DX is barely larger than this.

Downsizing a full FX image to 3840 helps with noise too. And I may decide when editing that the full image would work better if it was cropped a lot.

FX: 6,048 x 4,024

DX: 3936 x 2624

 

[jthomas39]

An informal test. Z6, 24-200 at 150mm, auto exposure.

FX, jpg straight out of camera.



~~~

DX, jpg straight out of camera. Auto exposure set it to 1/125 and ISO 640, compared to 1/80 and ISO 400 in FX.



~~~

DX crop of the FX image. ( It's slightly shorter vertically.) Comparing side-by-side, zoomed in to 200%, I think the FX crop seems slightly better. But this is a quick, handheld test, not a careful tripod test. Both are perfectly good enough.

 

[Virtual Photon]

As noted above, lower resolution, tighter angle of view, but also a slight hit on photographic dynamic range (primarily because of the lower resolution) illustrated here.

 

[PLShutterbug]

Apart from the crop factor what are the disadvantages of using a DX lens on A Z 6ii.

You will be stuck with the DX crop. Hopefully that gives you a desirable angle of view. And the 24MP Z6ii becomes about 10MP, which is OK for a web post or email, but that is pretty low.

Sorry. I should have been more specific. I understand the crop/mp issue. I'm more concerned about any quality issues.

You will also get IQ corresponding to DX camera.

Thanks. That's the information I was looking for. Is there somewhere I can see tests that show what the IQ loss would be? I'm ok with the 10mp size as long as that is a quality 10mp.

I have a DX Tamron 16-300mm lens that I may want to use occasionally on a Z 6ii. The Nikon Z 24-70mm would be my work horse until some money comes my way!!

If you are used to using that DX Tamron on an existing Nikon DX camera then you will get the same IQ as on the DX camera, once you factor in any difference in pixel count.

If you have a D90 right now (12MP), you will end up with Z6/DX images almost identical. You'll lose a tiny amount because your images will be 10MP rather than the 12MP of the D90. But with the FTZ, the lens will deliver exactly the same IQ as with that older F-mount body.

Think about the Z 24-200mm. It's a nice lens and will give you similar wide-angle performance. You'll lose on the long end, but you can crop and get some of it back with the same MP penalty as using the 16-300, except the 24-200 is a sharper lens.

 

[brucet]

An informal test. Z6, 24-200 at 150mm, auto exposure.

FX, jpg straight out of camera.



~~~

DX, jpg straight out of camera. Auto exposure set it to 1/125 and ISO 640, compared to 1/80 and ISO 400 in FX.



~~~

DX crop of the FX image. ( It's slightly shorter vertically.) Comparing side-by-side, zoomed in to 200%, I think the FX crop seems slightly better. But this is a quick, handheld test, not a careful tripod test. Both are perfectly good enough.

Thanks for the work.

--
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