The best camera for macro?

Started Dec 27, 2012 | Discussions thread
brightcolours
Veteran MemberPosts: 9,915
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Re: APS-C has an advantage
In reply to dsjtecserv, Dec 27, 2012

dsjtecserv wrote:

brightcolours wrote:

Peter too wrote:

We often get discussions about the best camera for landscape, lowlight, action and portraits but which camera would produce the best results for macro, using say the Canon 100mm macro and the Canon 65mm 1-5X macro?

is it just a matter of resolution i.e. the total number of pixels or is low light ability important? I am particularly thinking of insect photography.

Possible cameras might be 5D ll, 5D lll, 6D, 7D or 60D.

APS-C magnifies more. If you have an 1:1 lens, APS-C (due to its smaller sensor) will magnify 1.6x more.

This isn't true.

Of course it is true.

Magnification refers only to the size of the image of an object relative to the actual object.

The image per mm sensor surface. Since a FF sensor is 36mm wide or so, and an APS-C sensor is 22mm wide or so, the APS-C image can be filled with a 22mm small object. The FF image can only be filled with a 36mm wide object. The 22mm wide object will not fill the FF image.

This doesn't change with sensor format; the image of a bug at 1:1 will be the same size as the bug, regardless of the amount of sensor surrounding it.

Not on the final photo. The bug will be bigger on the APS-C photo.

Where full frame will allow a 36mm wide subject to fill the frame, APS-C will allow a 22mm wide subject to fill the frame.

Correct, and very useful, but not magnification.

That IS the magnification. The bug will be BIGGER on the APS-C image. More magnified.

Filling the frame has nothing to do with magnification, it just defines ​how much​ of the subject will be captured at any given magnification.

Of course it has to do with magnification. Magnification is only about how big the bug will be in a photo. Nothing else.

That's useful in the same way that the longer equivalent focal length of a crop is always useful -- to help isolate the subject, etc. But that's different from magnification.

It is not different at all. The 1:1 magnification only says something about the projected image, not the captured image. Only the captured image is of importance to photographers, not the projected image.

And if the sensor has a higher pixel density -- as crop cameras often do -- then the image may be more enlargeable without loss of detail. That also gives a potential advantage to using a crop for macro.

Great pictures, by the way. I hated to delete them!

Dave

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