Moon shot with Sigma sd Quattro H and a 135mm lens

Started 3 months ago | Discussions thread
OP furtle Senior Member • Posts: 1,228
Re: Moon shot with Sigma sd Quattro H and a 135mm lens

DavidWright2010 wrote:

Yes, it's still there.

I was unable to replicate your original result with resize in PS and then Topaz Sharpen AI (which I use often). But as you probably know, Sharpen can fail spectacularly if the noise is too high. Gigapixel probably has the same 'problem'. I've seen crazy 'details' in this area of the Moon on my own shots after AI-stabilize.

I think your lens and image are correct, though. It's just an unhappy result of undersampling complex terrain. I found a higher rez image (Sigma SD1M) of mine (one with a similar phase angle) and down-rezzed to your resolution. I think the details you have are in agreement with actual details.

You can look for yourself (my down-rezzed image on left):


Thanks, David.  It looks like I reached the limit of what a 135 mm lens and the Sigma sd Quattro can do.   I guess I need a longer lens but that's not a road I'm likely to take.

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Best, Steve

 furtle's gear list:furtle's gear list
Ricoh GR Digital III Sigma DP1s Sigma DP2 Merrill Sigma dp3 Quattro Sigma dp0 Quattro +9 more
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