Search found 69 matches

by Asha
Sat Jan 09, 2016 11:11 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: 5DsR/MPE65 useful magnification experiments
Replies: 8
Views: 6456

Very nice--thanks for posting!
by Asha
Sat Jan 09, 2016 10:05 am
Forum: Equipment Discussions
Topic: Android DSLR Control by ChainFire
Replies: 19
Views: 7019

Thanks Rik...looks like qDlsrDashboard also has had some spotty support, although they recently did an update in late Dec 2015. I think the tablet will be ok as long as I can get a good OTG host cable. If none of this works, I can always fall back to the Canon EOS Utility, although I'd be using it o...
by Asha
Fri Jan 08, 2016 4:13 pm
Forum: Equipment Discussions
Topic: Android DSLR Control by ChainFire
Replies: 19
Views: 7019

Craig (or whoever is still reading), How are you finding the Android tablet with DSLR Controller working these days? I have an Asus Memo 7 which looks to be compatible with the app. I can't say it isn't worth it to try, especially since I got the tablet for $1 in an AT&T package deal and the DSLR Co...
by Asha
Sun May 24, 2015 7:15 am
Forum: Equipment Discussions
Topic: Olympus OM-D Em5 Mark II: High resolution shot mode
Replies: 18
Views: 6843

The Olympus "Pro" line of mft cameras is really awesome--I've been drooling over those cameras for a while now. Thanks for sharing your insights and your resulting image!
by Asha
Tue May 12, 2015 9:59 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Image stacking issue
Replies: 6
Views: 2900

Jin, is it the 7D MII?
by Asha
Tue May 12, 2015 7:50 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Image stacking issue
Replies: 6
Views: 2900

I wonder if that is the same problem I was having with my 5D MIII. Here is a thread where there are examples of the artifact, and some solutions offered by Rik:

http://www.photomacrography.net/forum/v ... hp?t=27295
by Asha
Sun May 10, 2015 8:11 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Batch raw processing on a mac -- for focus stacking
Replies: 4
Views: 1619

For batch processing of RAW images, I mostly use DxO Optics Pro . I've been using it since v8 and it is now up to v10. You can "select all" in a folder, and then apply changes such as exposure compensation, unsharp mask, etc., and see side-by-side comparisons of the original to changed versions. If ...
by Asha
Fri May 08, 2015 2:21 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Numerical aperture of a naked light bulb?
Replies: 6
Views: 3041

Chris, but it disappears when the light is diffused, assuming the optics and aperture stay the same in both shots.
by Asha
Fri May 08, 2015 10:25 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Numerical aperture of a naked light bulb?
Replies: 6
Views: 3041

Rik, do you think you're getting those dust effects due to partial-coherence in the system? Diffraction ringing around the dust is like what I've seen in interferometry setups. In the lab it is usually a full coherence effect since monochromatic sources are used. In the lab, diffusion also solves th...
by Asha
Thu May 07, 2015 8:08 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Animation of 105mm macro lens optics
Replies: 3
Views: 1752

That was awesome--thanks for posting the link!
by Asha
Mon May 04, 2015 12:01 pm
Forum: Equipment Discussions
Topic: Opinion on sharpness 550D vs 750D appreciated
Replies: 12
Views: 3627

Niels, did you try just shooting a simple scene with a USAF test target or similar? Having a neutral target allows a much more objective assessment.
by Asha
Mon May 04, 2015 11:57 am
Forum: Equipment Discussions
Topic: Softbox lining
Replies: 7
Views: 2114

What do you mean by undesirable textures? Could you clarify that or give an example please? I'm mainly talking about styrofoam that is a pressed sheet of pellets, not the smooth white polystyrene I've seen in hobby shops. The chunky texture of styrofoam and paper towels isn't the best at producing ...
by Asha
Fri May 01, 2015 11:28 am
Forum: Equipment Discussions
Topic: Softbox lining
Replies: 7
Views: 2114

I agree with Rik on this one--try to apply the appropriate white balance, either in camera or in Lightroom/Camera Raw (or both!). Incidentally--styrofoam and paper towels absorb quite a bit of light, and often have undesirable textures. Have you tried tracing paper, drafting vellum or matte mylar? O...
by Asha
Tue Apr 28, 2015 3:41 pm
Forum: Equipment Discussions
Topic: Softbox lining
Replies: 7
Views: 2114

I haven't made any, but I own studio lighting which has a bumpy silver lining inside the soft boxes. It is a fabric, somewhat like a sunshade used in a car windshield. I think crumpled aluminum foil in a home-made soft box would be a fine material to use. Crumpled foil has the effect of giving the l...
by Asha
Tue Apr 21, 2015 8:19 am
Forum: Equipment Discussions
Topic: Canon 100mm f2.8 Macro with Nikon CFI 10x/0.25 on FF body?
Replies: 11
Views: 3798

Rik, I don't have any concrete magnification goals--I just want a tad more than I currently have because I haven't been getting the kind of edge-to-edge composition that I want. Thanks for the reminder to use the smallest limiting slice--it is true that is the full frame of my camera, so I should be...