Search found 517 matches

by harisA
Mon Oct 31, 2011 11:29 am
Forum: Photography Through the Microscope
Topic: trapped.........
Replies: 4
Views: 1137

trapped.........

let the image speak by itself....Image

if someone can identify what is trapped please let me know

NIKON E-PLAN 40X/0.65 no stacking

Haris.A
by harisA
Mon Oct 31, 2011 10:56 am
Forum: Photography Through the Microscope
Topic: Hydrurus
Replies: 7
Views: 4213

thank you very much.
Image quality seems without any issues.

And a last question . What objectives did you use for the initial photos? Are they modified by hoffman laboratories?

Thank you
by harisA
Mon Oct 31, 2011 1:15 am
Forum: Photography Through the Microscope
Topic: Hydrurus
Replies: 7
Views: 4213

Re: Hydrurus

Found this today and it reminded me that I had a few photos already. The first is a branch, the second a close-up of the branch and the third is a motile reproductive cell. http://www.photomacrography.net/forum/userpix/1050_Hydrurus_400_X_011910_1.jpg http://www.photomacrography.net/forum/userpix/1...
by harisA
Fri Oct 21, 2011 11:34 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: question regarding hoffman modulation.
Replies: 3
Views: 1925

I only know what I have read concerning Hoffman Modulation. Here is a clip that answers one of your questions: (From: http://micro.magnet.fsu.edu/primer/techniques/hoffman/hoffmanintro.html ) When the condenser is set at the brightfield position, objectives with a modulator installed can also be us...
by harisA
Thu Oct 20, 2011 3:57 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: question regarding hoffman modulation.
Replies: 3
Views: 1925

question regarding hoffman modulation.

Hello all

I have some questions about Hoffman modulation

1)Is this technique comparable to dic as far as concern the aesthetic of the final image
2)Is this technique utilises special objectives?If yes is it possible to use them for regular brightfield photography?

Thank you in advance

Haris.A
by harisA
Thu Oct 13, 2011 11:02 am
Forum: Equipment Discussions
Topic: APO RODAGON-D 75mm f4.5 2X opinions
Replies: 51
Views: 29594

I also own the 75ARD1 version and i have some questions? 1)How can i mount it reversed to a m42 camera? 2)Whitch is the optimum distance from camera mount for 1x and 2x magnification (lens is consider reversed). Thank you in advance I am not sure there will be any advantage to reversing the 75ARD1....
by harisA
Thu Oct 13, 2011 4:31 am
Forum: Equipment Discussions
Topic: APO RODAGON-D 75mm f4.5 2X opinions
Replies: 51
Views: 29594

I also own the 75ARD1 version and i have some questions?

1)How can i mount it reversed to a m42 camera?

2)Whitch is the optimum distance from camera mount for 1x and 2x magnification (lens is consider reversed).

Thank you in advance
by harisA
Mon Sep 26, 2011 5:22 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Stacking step for microscope objective
Replies: 5
Views: 2528

Stacking step for microscope objective

I'm sure this has been answered before but i did'nt manage to find. What i want is the mathematical formula for calculating the optimal step for a given objective (magnification and n/a) and sensor size. Also a little theory regarding the logic of calculations will be very helping. Thank you in adva...
by harisA
Thu Sep 15, 2011 2:56 am
Forum: Nature Photography -- Macro and Close-up
Topic: Dewdrops
Replies: 8
Views: 2022

brian i would be greatfoul if you could post a link on how manual stacking is done.

Thank you in advance

Haris
by harisA
Wed Sep 14, 2011 11:50 pm
Forum: Nature Photography -- Macro and Close-up
Topic: Dewdrops
Replies: 8
Views: 2022

Very beautifull.Did you use any flash light...How did you manage to avoid reflections?
by harisA
Sun Sep 04, 2011 3:06 pm
Forum: Photography Through the Microscope
Topic: inspired from 2007 winning picture of Charles Krebs
Replies: 4
Views: 1469

The photo above is the solarisation version of the brightfield image.
Here is the initial imageImage

My fault not to mention it before.Thank you all for your kind comments.
by harisA
Fri Sep 02, 2011 10:10 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Loss of contrast after stacking (Zerene)
Replies: 18
Views: 6724

Ric thank you very much for your fast response. I already know what happens when ''retain full dynamic range'' is clicked but this is not the issue here. My exposures are uniform but the final result of the stack using pmax method is similar to what Matthias is describing in his first post . Using c...
by harisA
Fri Sep 02, 2011 2:11 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Loss of contrast after stacking (Zerene)
Replies: 18
Views: 6724

Unfortunately i have the the same problem. I'm using PMAX and i always find that the final result is very low on contrast.
Is there a remedy for PMAX method because as far as i understand the ''brightness'' cure works only for DMAP.

Haris
by harisA
Mon Aug 29, 2011 11:59 am
Forum: Photography Through the Microscope
Topic: please identify this beauty
Replies: 2
Views: 1038

thank you betty

The beetle has wings and was landed on my brother's arm while we were on the beach in south Greece.