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Macro with a 600mm?
Lens: FA100&P645 300/2X Camera: K3ii Photo Location: Louisiana ISO: 250 Shutter Speed: 1s Aperture: F11 
Posted By: Rocketvapor, 06-10-2021, 11:58 PM

Can't sleep, So why not play with some lenses.
Here is a shot made with a FA100 Macro lens compared to the same shot (cropped/resized) with a P645 300mm zoom plus a 645 2X and an adapter on my K3ii.

5 inches away vs 5 feet away.


Darn, forgot that f/11 with the 2X is really f/22. Should have opened up a little.

Last edited by Rocketvapor; 06-11-2021 at 12:23 AM.
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06-11-2021, 03:58 AM   #2
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I've often maintained that the only significant difference that makes a macro lens special is the minimum focusing distance.
06-11-2021, 04:06 AM   #3
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QuoteOriginally posted by dlhawes Quote
I've often maintained that the only significant difference that makes a macro lens special is the minimum focusing distance.
That and historically being flat field
06-11-2021, 05:36 AM   #4
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The 600mm crop cost a lot of pixels but gained depth of field.
Here's the original field of view with the 600 on the APS-C K3ii.

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Last edited by Rocketvapor; 06-11-2021 at 05:50 AM.
06-11-2021, 06:09 AM   #5
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QuoteOriginally posted by Lowell Goudge Quote
That and historically being flat field
Good point, a critical factor where close-up focusing results in a very shallow depth of field. I wonder to what degree lenses identified as "macro" by the manufacturers actually achieve a flat field?
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