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New Lens - Sigma 105mm

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Pillar of the Community

Czech Republic
803 Posts
 Posted 07/25/2007  8:11 pm Show Profile   Bookmark this topic Add TwoKopeiki to your friends list Get a Link to this Message Number of Subscribers
Picked-up a dedicated macro lens for my Rebel XT. Also had a gorgeous 1 Real come-in today, which I practiced on. I am getting a hang of it, I think. What do you guys think?

Dave - looking at the pictures, feels like a like "too much detail". What do you think?

New-Lens---Sigma-105mm
New-Lens---Sigma-105mm
New-Lens---Sigma-105mm

Here's an image without any post-processing, except for cropping it out:

New-Lens---Sigma-105mm

~Roman
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t360's Avatar
United States
2703 Posts
 Posted 07/25/2007  8:43 pm  Show Profile   Bookmark this reply Add t360 to your friends list Get a Link to this Reply
Drop dead gorgeous. Beautiful piece with psychedelic toning.
Pillar of the Community
Czech Republic
803 Posts
 Posted 07/25/2007  10:02 pm  Show Profile   Bookmark this reply Add TwoKopeiki to your friends list Get a Link to this Reply
Thanks, t360!

Shooting through angled glass might bring-out the color, but here I think I like this set-up better. Using overhead light, shooting at a slight angle to the surface:

Better? Worse?

New-Lens---Sigma-105mm
New-Lens---Sigma-105mm
New-Lens---Sigma-105mm

~Roman
Edited by TwoKopeiki
07/25/2007 10:36 pm
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hunter20ga's Avatar
United States
1173 Posts
 Posted 07/26/2007  09:34 am  Show Profile   Bookmark this reply Add hunter20ga to your friends list Get a Link to this Reply
Excellent photos! I would agree that the second set shows off the coin better, though you do lose a bit of color.
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SsuperDdave's Avatar
United States
23522 Posts
 Posted 07/26/2007  4:42 pm  Show Profile   Bookmark this reply Add SsuperDdave to your friends list Get a Link to this Reply
The first set has the appearance of having had the contrast tweaked too hard. Part of the problem with axial lighting is it kinda limits you to one light and one angle - although you get the color, you lose the even distribution of light that a multi-bulb setup lends. Are you ensuring that no light shines directly from the bulb onto the coin, i.e., 100% of the lighting is thru the glass?

The second set is just fantastic.
Pillar of the Community
Czech Republic
803 Posts
 Posted 07/26/2007  4:52 pm  Show Profile   Bookmark this reply Add TwoKopeiki to your friends list Get a Link to this Reply
Dave, to answer your question - there was background lighting going on, as well. Plus, thinking back to the set-up, I think I might've had portion of the light hitting the lens.

The first set of shots is all messed-up. I've made quite a few mistakes in the set-up, which I'll try to remedy in the next few days. I was just over-excited about the lens and wasn't thinking about anything else :)

~Roman
Pillar of the Community
Czech Republic
803 Posts
 Posted 07/26/2007  7:49 pm  Show Profile   Bookmark this reply Add TwoKopeiki to your friends list Get a Link to this Reply
Dave, I tried angled glass again. I've been able to isolate the light into a single source, which looks to have improved the image quality.

What do you think?

New-Lens---Sigma-105mm
New-Lens---Sigma-105mm
New-Lens---Sigma-105mm

~Roman
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Amazon99's Avatar
United States
2443 Posts
 Posted 07/26/2007  8:43 pm  Show Profile   Bookmark this reply Add Amazon99 to your friends list Get a Link to this Reply
I think your recent ones looks the best from the previous ones.
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ElCerritoCoins's Avatar
United States
63 Posts
 Posted 07/30/2007  6:18 pm  Show Profile   Bookmark this reply Add ElCerritoCoins to your friends list Get a Link to this Reply
wow what great photos.... ive GOT to get a better camera and lense!
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hunter20ga's Avatar
United States
1173 Posts
 Posted 07/30/2007  7:06 pm  Show Profile   Bookmark this reply Add hunter20ga to your friends list Get a Link to this Reply
Those last pics look just about perfect. Congratulations!
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United States
54 Posts
 Posted 08/07/2007  6:19 pm  Show Profile   Bookmark this reply Add ludeboi121 to your friends list Get a Link to this Reply
wow theses pictures show so much detail, I'm amazed
Pillar of the Community
Czech Republic
803 Posts
 Posted 08/07/2007  8:54 pm  Show Profile   Bookmark this reply Add TwoKopeiki to your friends list Get a Link to this Reply
Thanks, everyone :) I'm finally getting a hang of this lens. Now all I have to do is find more coins to photograph :)
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tights24's Avatar
United States
2254 Posts
 Posted 08/08/2007  07:02 am  Show Profile   Bookmark this reply Add tights24 to your friends list Get a Link to this Reply
Awesome Roman. Better watch out Dave, it seems like folks are gunning for your crown here!

Roman, what are your settings for the last batch?
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Czech Republic
803 Posts
 Posted 08/08/2007  12:26 pm  Show Profile   Bookmark this reply Add TwoKopeiki to your friends list Get a Link to this Reply
tights24, thanks for the compliment! I have my camera set to ISO100 with f/11 aperture setting. Not sure of the shutter speed, I'll write it down next time I shoot.

Here's my last picture. My all-time favorite Mexican design with cool reverse colors, except someone scratched a "V" above Nike's head :(

New-Lens---Sigma-105mm
New-Lens---Sigma-105mm
New-Lens---Sigma-105mm
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SsuperDdave's Avatar
United States
23522 Posts
 Posted 08/08/2007  4:33 pm  Show Profile   Bookmark this reply Add SsuperDdave to your friends list Get a Link to this Reply
I've been telling people that, with the right equipment, coin photography is 80% equipment and 20% photographer, instead of the other way around. What do you think, now, Roman?

I'm gonna have to have me one of those 2 Pesos. It's my favorite year, too.
Pillar of the Community
Czech Republic
803 Posts
 Posted 08/08/2007  5:55 pm  Show Profile   Bookmark this reply Add TwoKopeiki to your friends list Get a Link to this Reply
Dave, I agree. I'm just getting into other aspects of digital photography, but even doing point-and-shoot stuff using a DSLR - the difference is staggering...
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