Camera Lens for Diamond Pics

[stebbo]

Date: 10/10/2007 8:14:31 AM
Author: Ellen

Date: 10/10/2007 7:01:39 AM

Author: stebbo

Date: 10/10/2007 6:49:08 AM

Author: Garry H (Cut Nut)

That diamond is whispering:- clean me, please clean me

Is ''I''ve been waiting for it to rain'' acceptable?

If it were still in the ground it would be.

And you edited.

Yeah, I initially pointed out that the shallow depth of field makes it look hazier because of the blurring effect within the diamond, but no excuses--I''m guilty--the crown and pavilion do need a good clean.

 

[Ellen]

lol I meant Gary''s post.

I didn''t see the other....

 

[Garry H (Cut Nut)]

Date: 10/10/2007 11:55:56 AM
Author: Ellen
lol I meant Gary''s post.

I didn''t see the other....

Stebbo''s Aussie to Aussie comment is along the lines of the drought we have down under Ellen

 

[Moko]

Date: 10/10/2007 3:55:08 AM
Author: stebbo
Heh if you feel like playing around with your Rebel and your two lenses, pop your 85mm on and then tape the 17-85 on to the end of it, but reversed. Like this:

Set the zoom to 17mm and you''ll get close to a 5x magnification at the sensor.


Here''s a shot from two of my lenses (neither are macro, no close-up lens either) with the 70-200mm attached @ 70mm, and the 17-35mm reversed @ 35mm

Wow,

Stebbo, awesome! Thank you for your time and effort for the demonstration!!
I never even thought about connecting two lenses together, especially using the lens reversed! I played a little bit with my camera and lenses, but I was bit afraid of scratching the both lenses because the size of my two lenses is different. The filters are protecting them, but still I was very nervous. Ha, maybe I am a big chicken. Anyway it was my first time I looked through my lens from the opposite direction and it was very interesting..

Anyway the picture you took is great! It''s very sharp and clear! – that’s why we can see the ring needs to be clean,

right? I cannot believe you did not use any macro lens. Your photo shows that a great picture can be taken with any equipments if a photographer is good!

 

[Moko]

Date: 10/10/2007 1:44:10 AM
Author: Garry H (Cut Nut)

Did i give you this link Moko?

http://www.ideal-scope.com/newsletters_issue008.asp

Thank you Garry, I had never looked into the news letter section, so posting the link here was very helpful! Otherwise,I would never found this. Thank you!! Now, I WANT "Expert Scope"!!

 

[Moko]

Date: 10/10/2007 1:45:25 AM
Author: strmrdr
Since you allready have a dslr a G9 would be a better option than the s5is if you want too step up from the 570is.

Or one of the SD series with IS if you want too go really small.

Strmrdr,

Thank you for your suggestion!! I have no idea about the main differences between G9 and S5IS.
All I know is: S5IS is less expensive and we can use regular batteries, but heavier than G9. The focal length in these two cameras is different. I guess I need to do more research before I jump on either one.

 

[stebbo]

Date: 10/10/2007 11:56:40 PM
Author: Moko
...that’s why we can see the ring needs to be clean,

right?

No, not really. The table is reasonably clean - I quickly ear-budded it with alcohol before the photo. Didn''t do the crown because I didn''t want cotton strands remaining. The main problem with this sort of macro photography is the extremely shallow depth of field. I''ve taken pictures of flies before where only part of their eye could be focus. So what you''re seeing in the photo is the table being in focus with the body of the diamond being out of focus, so it looks hazy. By focusing slightly deeper I could bring the pavilion facets into sharp focus and the diamond appears far less dirty.

It''s also not just a matter of stopping down the aperture either. At f/22 for example the image would show the aperture blades them self, leaving the image all black bar a small circle in the middle showing a portion of the subject.

 

[Ellen]

Date: 10/10/2007 4:51:14 PM
Author: Garry H (Cut Nut)

Date: 10/10/2007 11:55:56 AM
Author: Ellen
lol I meant Gary''s post.

I didn''t see the other....

Stebbo''s Aussie to Aussie comment is along the lines of the drought we have down under Ellen

Ahhh, thanks Gary, that comment makes ever so much more sense now!

 

[Moko]

Date: 10/11/2007 3:45:17 AM
Author: stebbo

The main problem with this sort of macro photography is the extremely shallow depth of field. I've taken pictures of flies before where only part of their eye could be focus. So what you're seeing in the photo is the table being in focus with the body of the diamond being out of focus, so it looks hazy. By focusing slightly deeper I could bring the pavilion facets into sharp focus and the diamond appears far less dirty.


It's also not just a matter of stopping down the aperture either. At f/22 for example the image would show the aperture blades them self, leaving the image all black bar a small circle in the middle showing a portion of the subject.

phew, the macro photography is complicated business. Thank you, Stebbo!