Search found 3224 matches

by Chris S.
Thu May 12, 2011 3:24 pm
Forum: Equipment Discussions
Topic: Focusing rail: What do you use?
Replies: 89
Views: 47472

Tanner, do I misunderstand, or are you using your reversed EL Nikkor as an auxilary lens on the front of your Pentax 135mm lens? All my experience with the EL Nikkor is in using it alone, reversed, on the end of a bellows.

Cheers,

--Chris
by Chris S.
Tue May 10, 2011 1:06 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Reflex camera Vs compact camera!
Replies: 37
Views: 15709

I can think of another problem--one I'm in the throes of dealing with in my own system. With my Nikon D200 DSLR, I get the impression that the viewfinder and sensor are not precisely the same optical distance from the lens. When an image is precisely focused in the viewfinder, the sensor is a bit to...
by Chris S.
Sun May 08, 2011 12:05 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Diaphora mendica
Replies: 17
Views: 4082

Very nice, Craig. Keep up the good work! I wouldn’t touch the saturation, unless the real moth actually looks more saturated to the eye. Your image looks appropriately natural to me, though I'm not familiar with this moth. Oversaturating in post seems to be a current fad, especially among landscape ...
by Chris S.
Sat May 07, 2011 5:21 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: More LCD diffuser playing
Replies: 12
Views: 3838

I use x-pol almost every day. It is a very straightforward technique--not much mystery to it, once you try it. While there is distinct coolness in scrounging materials, as Brian is doing, the more boring among us can just buy what we need. For in front of the flash, I use Techspec Linear Polarizing ...
by Chris S.
Fri May 06, 2011 12:57 pm
Forum: Equipment Discussions
Topic: Microscope objectives - recommendations?
Replies: 34
Views: 7439

Although I got it for the cone adapter, I have also used it to line all my lens hoods and some extension tubes etc. Very strongly agreed. I can't imagine any photomacrographer living without Protostar or a similar flocking material. Those cone adapters are terrible without it, but very good once li...
by Chris S.
Thu May 05, 2011 11:51 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Got my linear stage :D the obligatory test shot....
Replies: 21
Views: 5437

Yep, looks great! :smt038 Nice job with the lighting, background, and all else.

As Rik said, it gets easier. I sure have been there myself.

Cheers,

--Chris
by Chris S.
Thu May 05, 2011 2:20 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Smooth, non-shiny mounting surface for small stuff?
Replies: 14
Views: 6248

Thanks, Rik. One of the things I like to do with the Bratcam is pull away from what I think of as the “tyranny of the flat.” Well-known microscopic approaches already reveal wonderful detail, so long as the specimen is kept perpendicular to the optics. However, with a number of small subjects, I’ve ...
by Chris S.
Wed May 04, 2011 2:34 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Smooth, non-shiny mounting surface for small stuff?
Replies: 14
Views: 6248

Thanks for all the advice so far. It’s much appreciated. I should clarify that I’m not concerned about the reflections from my lights—those are pretty easy to deal with. What I want to avoid is reflections of the subject itself on the glass slide (or cover slip, if I place them on that, instead). Im...
by Chris S.
Tue May 03, 2011 1:11 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Smooth, non-shiny mounting surface for small stuff?
Replies: 14
Views: 6248

I agree with Pau, the smoother and flatter you get the surface, the more reflective it becomes. But is this inexorable? The wavelength of visible light is measured in nanometers, while these subjects are measure in microns. Could there not be some substance whose surface irregularities stand betwee...
by Chris S.
Tue May 03, 2011 12:37 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Smooth, non-shiny mounting surface for small stuff?
Replies: 14
Views: 6248

Thanks, Pau. As an example of what I'm thinking, carpet is not shiny because of its many surface irregularities. Similarly, sandpaper is not shiny because of its surface irregularities. But the surface irregularities in these two materials are differ in size by orders of magnitude. An ideal substrat...
by Chris S.
Mon May 02, 2011 11:27 pm
Forum: Equipment Discussions
Topic: Reversing enlarging lenses?
Replies: 39
Views: 9526

Yep, very good deal on a good lens. A lot of us--myself included--cut our teeth on this lens.

Mine is also 40.5 for the filter thread.

--Chris
by Chris S.
Mon May 02, 2011 11:20 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Smooth, non-shiny mounting surface for small stuff?
Replies: 14
Views: 6248

Smooth, non-shiny mounting surface for small stuff?

I'm guessing that microscopists have answered this question long ago; if so, perhaps someone can tell me what the answer is. I want to photograph mushroom spores with what microscopists would call "epi-illumination"--that is, not light passed through the spores, but light bouncing off the spores. A ...
by Chris S.
Mon May 02, 2011 12:18 am
Forum: Equipment Discussions
Topic: Sensor cleaning
Replies: 56
Views: 18561

I’m late to this party, but. . . . For folks who’ve never done a wet cleaning: Try it! Once you get used to it, it’s as mystifying—and necessary—as washing your dishes. Sensors—or really, the glass bits in front of them that you actually clean—are not all that delicate. Assuming a little common sens...
by Chris S.
Sun May 01, 2011 11:22 pm
Forum: Equipment Discussions
Topic: Starting From Scratch With A New PC
Replies: 124
Views: 36891

Phil, that's a very nice PC. I build quite a few machines myself, and looking around Puget Systems' Website, I get the impression that if one doesn't wish to build his own, or have access to a competent local builder, Puget seems a good bet. I see some things that look like mild upselling and modest...
by Chris S.
Sun May 01, 2011 1:43 am
Forum: Beginners Micro
Topic: Could someone advise please?
Replies: 2
Views: 2109

Welcome, Will! Craig linked you to an excellent thread. Another really useful thread is this one: http://photomacrography.net/forum/viewtopic.php?t=2825 In this thread, be sure to check out the various links in Charlie's post at the end. There is a ton of information in these links--don't be surpris...