The best camera for macro?

Started Dec 27, 2012 | Discussions thread
brightcolours Forum Pro • Posts: 15,335
Re: The best camera for macro?

Peter too wrote:

brightcolours wrote:

Peter too wrote:

Erland Nielsen wrote:

I've been doing insects for 14 years, 50-150-180 mm standard macro lenses, and the Mp-E 65. I mostly use the longer lenses. FF camera is for me something I like. Especially with the Mp-E 65. You get the ability to fit a larger insect in the frame. On a crop camera the "perceived magnification" range is shifted, getting extremely close at 5:1, but the ability to fit insects sized between 22,5 and 36 mm is lost, compared to FF.

Low light is important for me too. I don't use flash, but use mostly monopod and occasionally a tripod. Currently enjoying my new Sigma 180/2.8 OS on 5DIII.

That's interesting. Light is certainly an issue where I thought full frame might have an advantage over crop. Flash is almost essential for live insect photography at high magnification with the 65mm but with the 100mm macro or 1-2X magnification with the 65mm natural lighting becomes possible and the full frame might have an advantage.

Light is less of a factor as you might think (if sensors are of similar technology standards). With APS-C you can use a bigger aperture, to get the same depth of focus. This equalizes things.

However, the sensor tech. of the 5D mk III and the 6D is a bit better than the 18mp sensor used in the 60D and 650D, so that still brings a bit of an advantage higher ISO wise.

With live insect photography the chance of creating a focus stack is pretty limited and with high magnification depth of field is minuscule. At F16 DOF at 5X is 0.286mm while at 3X it is 0.498mm. So DOF is certainly an issue where the crop camera does seem to have a clear advantage.

f16 on FF is equivalent to f10 on APS-C. If you use f16 on APS-C, equivalent f-value for FF would be f16 x 1.6 = f25.6.

f16 on APS-C will give more noticable diffraction softening on image level than on FF.

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