Search found 4643 matches

by Lou Jost
Sat Oct 31, 2015 12:25 pm
Forum: Nature Photography -- Macro and Close-up
Topic: queen common wasp
Replies: 18
Views: 2898

How did you do that? A monopod or something similar?
by Lou Jost
Fri Oct 30, 2015 5:36 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: If you think you've got problems . . . remember this pollack
Replies: 17
Views: 5582

What a biologically and photographically fascinating post! Wonderful stuff (unless one is a pollack).
by Lou Jost
Fri Oct 30, 2015 1:40 pm
Forum: Beginners Micro
Topic: Mitutoyo 10X and 50X (need help with 50x)
Replies: 6
Views: 2609

Thanks for those links. Very strange. The camera I was referring to was a Panasonic FZ300, so this problem cuts across manufacturers. I think I can trigger a flash manually during silent exposure if I need to.
by Lou Jost
Fri Oct 30, 2015 11:33 am
Forum: Beginners Micro
Topic: Mitutoyo 10X and 50X (need help with 50x)
Replies: 6
Views: 2609

Rik wrote you cannot use flash with electronic shutter I was surprised to find my camera disabled its flash when the electronic shutter was enabled. I thought it was an idiosyncrasy of my particular camera brand, but your statement suggests it is a widespread limitation. Is there some fundamental ph...
by Lou Jost
Thu Oct 29, 2015 6:21 pm
Forum: Equipment Discussions
Topic: macro scenery with a bridge camera
Replies: 1
Views: 692

I should add that at this camera's longest focal length (600mm equivalent) the field of view is 8 cm, a bit less than half life size on a full frame camera. So it should be possible to fill the near frame with a flower and have a mountain looming large in the background, with everything sharp. Note ...
by Lou Jost
Thu Oct 29, 2015 5:47 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Common fly, its proboscis and leg
Replies: 18
Views: 5531

Thanks Rik, that's good to know.
by Lou Jost
Thu Oct 29, 2015 2:51 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Common fly, its proboscis and leg
Replies: 18
Views: 5531

Beautiful images! May I ask why you have an extension tube in the set-up? That's something new for me. I had thought the best results would be with the tube lens focused at infinity.
by Lou Jost
Thu Oct 29, 2015 2:47 pm
Forum: Equipment Discussions
Topic: Camera for Macroscopy
Replies: 22
Views: 2292

Hmmm....mysterious....
by Lou Jost
Thu Oct 29, 2015 11:31 am
Forum: Equipment Discussions
Topic: macro scenery with a bridge camera
Replies: 1
Views: 692

macro scenery with a bridge camera

Charles Krebs' old macro scenery posts are amazing, and people keep adding more info as technology advances. See http://www.photomacrography.net/forum/viewtopic.php?t=4864 and http://www.photomacrography.net/forum/viewtopic.php?t=4879&highlight=olympus+angle for example. I started trying to emulate ...
by Lou Jost
Thu Oct 29, 2015 10:51 am
Forum: Equipment Discussions
Topic: Camera for Macroscopy
Replies: 22
Views: 2292

I don't know what the magnification of your lens is, so the following comment may be irrelevant.... If the magnification of that lens is on the low end for the kind of FOVs you would like to have, a mirrorless bridge camera with a small high-density sensor may be able to put more pixels under your s...
by Lou Jost
Mon Oct 26, 2015 10:54 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: 12 shot in this stack taken in hand of a chilled wasp
Replies: 14
Views: 3081

I try to apply the same general guidelines people often use when approving or denying collection permits in ecological reserves. The main principle they (and I) use is that the collection should have negligible impact on the local population. So I would not collect an uncommon, long-lived insect, li...
by Lou Jost
Sun Oct 25, 2015 8:00 pm
Forum: Equipment Discussions
Topic: Help needed for water droplets
Replies: 5
Views: 1066

Use a very fine spray or misting device. The tiny droplets stay on easily, and they slowly grow into bigger ones if you keep adding mist. The trick is to grow the droplets in place rather than try to pour big ones on initially. If the drops have momentum they won't stick.
by Lou Jost
Sun Oct 25, 2015 5:22 pm
Forum: Equipment Discussions
Topic: Optimal sensor pixel density for Mitu 10x
Replies: 23
Views: 5452

Rik, that last paragraph is a good summary. I read the resolution/sharpness article you linked to. Your photo of the aerial image led me to wonder about photographing the aerial image of my Mitu 10x + 200mm tube, using say a 2x or 3x lens on an APS sensor. That's another interesting way to get more ...
by Lou Jost
Sun Oct 25, 2015 2:40 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: What really causes "diffraction blur" ?
Replies: 36
Views: 18703

OK, thanks for the clarification. That helps a lot.
by Lou Jost
Sun Oct 25, 2015 2:24 pm
Forum: Equipment Discussions
Topic: Optimal sensor pixel density for Mitu 10x
Replies: 23
Views: 5452

The difference is especially important when one wants to get lots of pixels under a very small subject. With a bridge camera I can work at 5x or 10x on the sensor, whereas getting the same number of pixels under the same object on an APS sensor requires more like 20x.