Search found 34 matches

by Blcak
Fri Jun 08, 2012 1:10 pm
Forum: Equipment Discussions
Topic: Schneider - KREUZNACH - apo componon hm 45mm f4
Replies: 12
Views: 4542

Is picture quality affected?

By much?

If it's not, then just keep this lens in a bright and dry enviroment (silica gel).
by Blcak
Fri Jun 08, 2012 10:51 am
Forum: Equipment Discussions
Topic: Intersting lens for "afocal" microscope set-up
Replies: 7
Views: 2142

You can consider getting that 40mm pancake with the K-01, it's the kit lens.
Since it is mirrorless, you won't have to worry about vibrations. The sensor is pretty good, too.

But still quite a gamble unless it works.
by Blcak
Tue Jun 05, 2012 7:52 am
Forum: Beginners Macro
Topic: how to make the picture sharper?
Replies: 29
Views: 11552

I think you mix up DOF with resolution here.

For better testing, can you try something properly exposed? Sensors don't really like the dark as much as the light.
by Blcak
Tue Jun 05, 2012 6:14 am
Forum: Nature Photography -- Macro and Close-up
Topic: Zigaena filipendula
Replies: 4
Views: 946

Nicely done.
Do you use an external trigger for that?
by Blcak
Mon Jun 04, 2012 1:45 pm
Forum: Equipment Discussions
Topic: Membership JML 20X Purchase
Replies: 108
Views: 18021

45 days? I'm still waiting for a shipping from Hong Kong that was sent on 18th of April :)
by Blcak
Mon Jun 04, 2012 1:18 pm
Forum: Equipment Discussions
Topic: Membership JML 20X Purchase
Replies: 108
Views: 18021

Is there any experience with shipping time?
I had one with the expensive UPS service, NYC (BH-Photo) to me took a mere 36 hours, but the much prefered cheaper shipping certainly won't be as fast.
by Blcak
Sat Jun 02, 2012 12:35 pm
Forum: General Discussion Forum and Community Announcements
Topic: Just a myth? Ice spray for macro.
Replies: 6
Views: 2274

The post apparently has been removed and should have been available to the public. Not sure what Google is doing these days. Anyway, as Rik pointed out, he used an aerosol coolant (parfumed even) to immobilize grasshoppers and put them in a rose. The resulting picture looked somewhat like a crossing...
by Blcak
Sat Jun 02, 2012 7:13 am
Forum: Equipment Discussions
Topic: Arduino – (Macro Slide for Focus Stacking)
Replies: 22
Views: 17715

actually you can (sort of) expand the number of pins by using shift registers. such as this one http://www.sparkfun.com/products/733 basically you use one pin to on your arduino to control several pins on the shift register chip, thus effectively expand the number of pins you have at your disposal ...
by Blcak
Sat Jun 02, 2012 7:04 am
Forum: Equipment Discussions
Topic: Membership JML 20X Purchase
Replies: 108
Views: 18021

naturephoto1 wrote:to be shipped to Switzerland to David (Blcak)
I study and live in Germany for a while now, I'd rather have it here! :)
by Blcak
Wed May 30, 2012 12:48 pm
Forum: Equipment Discussions
Topic: Membership JML 20X Purchase
Replies: 108
Views: 18021

Hey! I'm Thierry from France and I'm really interrested in buying this lens but I have no clue of the mount it is! Do you know if I can mount it on my om bellows ? When you take your time to read this thread: http://www.photomacrography.net/forum/viewtopic.php?t=16171&postdays=0&postorder=asc&start...
by Blcak
Wed May 30, 2012 12:00 pm
Forum: Equipment Discussions
Topic: Membership JML 20X Purchase
Replies: 108
Views: 18021

Very nice! Thank you already! :)
by Blcak
Wed May 30, 2012 11:31 am
Forum: Photography Through the Microscope
Topic: Desmids (images added ++)
Replies: 38
Views: 10179

..no ..what is LAB mode? :?: can you tell me some steps? best Arturo I'm not really competent (yet) with this mode, but I can give you some starting advice. In Photoshop (don't know from which CS on), you can change the colour mode in a picture (RGB, CMYK, etc.). LAB is among that. To work in LAB m...
by Blcak
Wed May 30, 2012 6:35 am
Forum: General Discussion Forum and Community Announcements
Topic: Just a myth? Ice spray for macro.
Replies: 6
Views: 2274

Just a myth? Ice spray for macro.

I've always thought of this as a myth, but I've recently stumbled across someone who really uses ice spray to immobilize insects.

http://plus.google.com/u/0/102377882249 ... 3PSP8w96VL


Is this a more common technique than I had thought? Google didn't exactly turn up much results.
by Blcak
Wed May 30, 2012 6:13 am
Forum: Photography Through the Microscope
Topic: Desmids (images added ++)
Replies: 38
Views: 10179

Amazing pictures, Rogelio. I need to get myself a microscope one day. Haven't used one since my school days, and these particular hours were too short. Rogelio please stop otherwise i jump out of windows whit my scope ...and my 600D :lol: :cry: :wink: incredible shots! just a question: my canon does...
by Blcak
Sat May 26, 2012 5:23 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: LSD for macro photographers (high-tech diffusion material)
Replies: 46
Views: 21219

I wonder if anyone has followed up on this trace!?
It's been a while and it seemed quite promising.