Steve'sDigicams

riata0103 · Jul 20, 2005, 7:41 AM

I have a sigma 70-300mm with macro mode. I am trying to figure out how to use the macro! I can't seem to focus in as tightly as I'd like to. I am using manual focus, but still find that I can't fill the frame with my shot the way I'd like to. Is there anything else I can do, short of investing in a true macro lens?

Thanks!

Nagasaki · Jul 20, 2005, 9:25 AM

Reading the lens specs you need to use the lens set at 300mm to get 1:2 focusing anything less and it won't fill the frame as well. Also it is not 1:1 macro which would give you an image and subject the same size but 1:2 which means your smallest subject is twice the size of the sensor.

You could try close up lenses which screww onto the filter thread as a cheaper alternative to a true macro lens, the quality can be good but it won't match a true macro lens.

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Jul 20, 2005, 7:41 AM	#1
riata0103 Junior Member Join Date: Feb 2005 Posts: 10	I have a sigma 70-300mm with macro mode. I am trying to figure out how to use the macro! I can't seem to focus in as tightly as I'd like to. I am using manual focus, but still find that I can't fill the frame with my shot the way I'd like to. Is there anything else I can do, short of investing in a true macro lens? Thanks!

Jul 20, 2005, 9:25 AM	#2
Nagasaki Moderator Join Date: Jan 2004 Posts: 897	Reading the lens specs you need to use the lens set at 300mm to get 1:2 focusing anything less and it won't fill the frame as well. Also it is not 1:1 macro which would give you an image and subject the same size but 1:2 which means your smallest subject is twice the size of the sensor. You could try close up lenses which screww onto the filter thread as a cheaper alternative to a true macro lens, the quality can be good but it won't match a true macro lens.