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09-28-2014, 07:19 AM   #3256
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BIG difference between 10mm and 16mm


Last edited by calicojack; 09-28-2014 at 11:03 AM.
09-28-2014, 08:34 AM - 1 Like   #3257
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QuoteOriginally posted by malenisjaj Quote
I hope this is not off topic. I'm thinking to buy used 10-20 4-5.6 for approx. $350. But since I like to do also landscape astrophotography I was thinking also about Samyang 16/2 ($470). Now, I really don't know what to do. There are also reviews about this lens (Sigma) that it lacks sharpness and there's not that big aperture, if you compare it with Samyang f2, but Sigma has 10-20mm zoom which is really good range.
With the 10-20mm you can get a LOT more in the frame than at 16mm. Fuzziness in the corners is to be expected, even with a 16mm you're going to have more movement at the edges then where you're focused which will lead to trailing/blur, so corner issues (largely) become a non-issue.

That said, I'd see if I could find the f/3.5 on sale if I were going for astrophotography over the 4-5.6. If you're zoomed in for a shot, f/2 is leaps and bounds more preferable over f/5.6 for shooting at night.

In your case, when dealing with just those two lenses, with what you intend to use them for, I'd go for the Samyang over the Sigma in a heartbeat. Considering I almost always argue "Go for the Sigma", that's saying a lot.
10-04-2014, 06:04 AM   #3258
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f4-5.6

Sunrise started off a bit pathetic, but once it got over the horizon things definitely improved!!



10-04-2014, 07:26 AM - 1 Like   #3259
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Forgot to crosspost this one over to here. Probably won't see a clear night for a few weeks (plus the moon is getting towards full) so should be a bit before I can attempt a repeat.

90 seconds wide open via the O-GPS1



10-05-2014, 07:58 PM - 1 Like   #3260
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K-5 Sigma 10-20 f 3.5

2 exposure HDR at f 13


10-05-2014, 10:42 PM   #3261
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QuoteOriginally posted by Arizona Dave Quote
2 exposure HDR at f 13
nice.love the sky!
10-05-2014, 11:56 PM   #3262
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K5 + Sigma 10-20, shot handheld with extended bracketing


10-10-2014, 12:16 AM - 1 Like   #3263
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A couple of shots from Laguna lake taken at the town of Angono here in the Philippines


Sun Blaster
by drivingback, on Flickr


Where There's Gold...
by drivingback, on Flickr

10-12-2014, 08:03 AM   #3264
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QuoteOriginally posted by drivingback Quote
A couple of shots from Laguna lake taken at the town of Angono here in the Philippines


Sun Blaster
by drivingback, on Flickr


Where There's Gold...
by drivingback, on Flickr
Beautiful, love the second one.
10-13-2014, 07:28 PM   #3265
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QuoteOriginally posted by drivingback Quote
A couple of shots from Laguna lake taken at the town of Angono here in the Philippines


Sun Blaster
by drivingback, on Flickr


Where There's Gold...
by drivingback, on Flickr
Me too. Lovely shots!
10-16-2014, 05:40 AM - 2 Likes   #3266
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Having fun in Tokyo.

10-20mm f4-5.6



10-16-2014, 07:56 AM   #3267
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QuoteOriginally posted by kcupp95 Quote
Having fun in Tokyo.
I really like that second shot. It would be interesting to hang it on the wall and watch people as they look at it.

Tim
10-16-2014, 03:42 PM   #3268
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A very nice shot, the second. and if you will boost a little the darks will be great.
10-21-2014, 06:47 PM - 1 Like   #3269
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10-21-2014, 11:05 PM   #3270
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kcupp95 - You're on a roll with those gorgeous photos! Nice way to use the wide angle capabilities of the lens!
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