FX lens on a DX camera
Jul 30, 2015 06:57:06 #
Jul 30, 2015 06:58:58 #
Jul 30, 2015 06:59:11 #
Carl A wrote:
Can a FX lens be used on a DX camera
Yes, usually, but with some loss of function possibly.
Sometimes the FX lens may not have a built in focusing motor, so on some DX camera's it becomes a manual focus lens.
Jul 30, 2015 07:00:16 #
Carl A wrote:
Can a FX lens be used on a DX camera
Yes, but according to Tony Northrup, that's a bad idea, which is controversial opinion.
http://www.youtube.com/watch?v=YDbUIfB5YUc
Jul 30, 2015 07:11:45 #
Jul 30, 2015 07:13:20 #
jerryc41 wrote:
Yes, but according to Tony Northrup, that's a bad idea, which is controversial opinion.
http://www.youtube.com/watch?v=YDbUIfB5YUc
http://www.youtube.com/watch?v=YDbUIfB5YUc
Hmmmm... never heard that the aperture of an FX lens on a DX body should be multiplied by the crop factor... I wonder, does that mean a DX f/1.8 used on an FX body would perform as a f/1.2?
Jul 30, 2015 07:16:14 #
jerryc41 wrote:
Yes, but according to Tony Northrup, that's a bad idea, which is controversial opinion.
http://www.youtube.com/watch?v=YDbUIfB5YUc
http://www.youtube.com/watch?v=YDbUIfB5YUc
Yes, a very bad idea. I must remember next time I shoot with my Nikon D600 or Sony A7r in crop mode to switch lenses to cheap crop sensor kit lens, or I will destroy the sharpness of my pictures and fuck up the aperture and loose most of the megapixels. :mrgreen: Oh, I forgot, unless I am shooting wildlife, then it is better to use the crop setting and full frame glass he says
I love it when people make a youtube video to demonstrate how stupid answers they can make up for simple questions. :XD:
Jul 30, 2015 07:33:55 #
Dngallagher wrote:
Hmmmm... never heard that the aperture of an FX lens on a DX body should be multiplied by the crop factor... I wonder, does that mean a DX f/1.8 used on an FX body would perform as a f/1.2?
This has cropped up many times, usually started by Tony Northrup. In an earlier version of his post he admitted he was actually speaking of Depth of Field and perspective, not equivalent focal lengths or apertures.
Jul 30, 2015 07:36:58 #
Carl A wrote:
Can a FX lens be used on a DX camera
It depends... On Nikon yes all can be. On Canon, it depends on the lens mounts. Some of the Canon lenses will not work on other Canons DX or FX. I am not sure which go to which others but some of the Canon guys can clarify that.
As for othe manufactuerers again it depends. Many will not. That is one of Nikon's major advertising statements is that All Nikon cameras and lenses are compatible and have been since the 1970's or so. They claim that they are the only manufacturer that can make that statement. A word of caution though: Some of the lower end Nikon cameras, specifically what Nikon calls the Entry Level cameras (the 3xxx line and the 5xxx line .. that is the 3000, 3100, 3200, 3300, 5000, 5100, 5200, 5300, 5500 etc.) do not have a focus motor in the camera so unless the lens has a buil-in focus motor, you will have to manually focus it.. But it will still fit and work other that not autofocusing. The Nikon Enthusiest Level (D7000, 7100 D600, D610, D750and 7200 and DF) plus the Professional level (the D800, D800e, D810, D810a, D3, D3x, D4, D4s) all have the focus motor in the camera and all lenses will work. The list I provided are current and near current Nikon models but it holds true through the entire line.. I have an old D70s (the earlier realative to the D7xxx) that also has the focus motor built into the camera.
Jul 30, 2015 07:37:16 #
Searcher wrote:
This has cropped up many times, usually started by Tony Northrup. In an earlier version of his post he admitted he was actually speaking of Depth of Field and perspective, not equivalent focal lengths or apertures.
If he wants people who are not completely empty in their head to respect him and recommend his videos he should delete this bullshit and make a new video with the correct information.
Jul 30, 2015 07:38:01 #
Dngallagher wrote:
Hmmmm... never heard that the aperture of an FX lens on a DX body should be multiplied by the crop factor... I wonder, does that mean a DX f/1.8 used on an FX body would perform as a f/1.2?
Apples and oranges; you're mixing diffraction limiting with light gathering.
Different animals.
Jul 30, 2015 07:41:17 #
Dngallagher wrote:
Hmmmm... never heard that the aperture of an FX lens on a DX body should be multiplied by the crop factor... I wonder, does that mean a DX f/1.8 used on an FX body would perform as a f/1.2?
No, it should not be multiplied by anything. The only way to change the aperture is by turning the aperture ring or by setting it in camera. It is not possible to change the aperture with calculation alone. Not everyting on the internet or Youtube is true.
Jul 30, 2015 07:43:04 #
I started with a D300s and used all my older film lenses. Some of the older lenses with full manual tho. I knew I wanted to go FX and bought the FX lenses. They all worked fine and now are used on the D600. I only have 2 DX lenses. The 10.5 fisheye and the 17-55.
Jul 30, 2015 07:44:45 #
Searcher wrote:
This has cropped up many times, usually started by Tony Northrup. In an earlier version of his post he admitted he was actually speaking of Depth of Field and perspective, not equivalent focal lengths or apertures.
I just spent a little bit searching and usually found the only one talking about crop factor x aperture was indeed Tony Northrup....
It seems logical that the size of the opening IS the size of the opening physically based on lens length, not by crop factor.
Jul 30, 2015 07:45:34 #
JPL wrote:
No, it should not be multiplied by anything. The only way to change the aperture is by turning the aperture ring or by setting it in camera. It is not possible to change the aperture with calculation alone. Not everyting on the internet or Youtube is true.
Yes, my point to the OP of the video ;)
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