Search found 208 matches
- Mon Nov 20, 2006 11:40 am
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Stack & stitch experiment with telecentric optics
- Replies: 13
- Views: 26620
Hi Rik, George, For a quick intro to telecentric lenses, I suggest http://www.computeroptics.com/telecentric.html . --Rik I've had a look at the site, and I think I understand how telecentric lenses work for an image from a single location. So I can see how that would benefit you when making a stack...
- Sun Nov 19, 2006 8:38 am
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Stack & stitch experiment with telecentric optics
- Replies: 13
- Views: 26620
Hi Rik, You made a really great image there. I downloaded the large version, and the detail is astounding in so large an image. I've never heard of "Telecentric Lens Systems" before, but you have produced wonderfully detailed image from the setup you have put together. This seems like a cool way to ...
- Sun Nov 19, 2006 3:28 am
- Forum: Macro and Close-up Archives
- Topic: Alder Cones
- Replies: 5
- Views: 1572
- Sun Nov 19, 2006 3:23 am
- Forum: Macro and Close-up Archives
- Topic: Alder Cones
- Replies: 5
- Views: 1572
Hi Doug, How big are they when they mature? Great job on the stack. They don't get much bigger. There is some variablility in size. The ones in the image are in the mid-sized range. They tend to grow in width as the scales open, but the length remains pretty much the same. A bit like me when I used ...
- Sat Nov 18, 2006 9:53 am
- Forum: Macro and Close-up Archives
- Topic: Alder Cones
- Replies: 5
- Views: 1572
Alder Cones
Here's an image of some Alder Cones from my garden this morning. Each cone is about 20 mm long.
D200 with Nikon 105mm VR Macro Lens ( VR Off )
F11, 0.4 sec, Iso 100
Tungsten Light
20 frames with 1mm focus adjustment between exposures
Stacked in Helicon Focus
Finished in Photoshop CS2
Bye for now.
D200 with Nikon 105mm VR Macro Lens ( VR Off )
F11, 0.4 sec, Iso 100
Tungsten Light
20 frames with 1mm focus adjustment between exposures
Stacked in Helicon Focus
Finished in Photoshop CS2
Bye for now.
- Sat Nov 18, 2006 2:31 am
- Forum: Macro and Close-up Archives
- Topic: Ivy Flower ( Hedera Helix )
- Replies: 7
- Views: 1108
- Fri Nov 17, 2006 11:06 am
- Forum: Macro and Close-up Archives
- Topic: Ivy Flower ( Hedera Helix )
- Replies: 7
- Views: 1108
- Fri Nov 17, 2006 9:11 am
- Forum: Macro and Close-up Archives
- Topic: Ivy Flower ( Hedera Helix )
- Replies: 7
- Views: 1108
- Fri Nov 17, 2006 8:03 am
- Forum: Macro and Close-up Archives
- Topic: Ivy Flower ( Hedera Helix )
- Replies: 7
- Views: 1108
Ivy Flower ( Hedera Helix )
Hi all, I noticed this morning that the Ivy on my house wall is just coming into flower. This is a stacked image of 28 frames adjusted by 0.5 mm between shots. Each of the little florets is about 2.5 mm in diameter. Nikon D200 with 105mm VR macro + 1.4 x teleconverter. 28 frames of 0.6 sec @ F11 iso...
- Thu Nov 16, 2006 1:19 pm
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Stitching 101
- Replies: 13
- Views: 7954
Hi Rik, I'll have a closer look to see if I can find the seems you noticed. Thats still a pretty cool panorama of the butterfly garden, even though you say that the stitching has problems. I noticed a bit of a problem in the rail behind the lady in blue. Is that the one you meant? I also noticed a b...
- Thu Nov 16, 2006 10:52 am
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Stitching 101
- Replies: 13
- Views: 7954
Hi Rik, Your demonstration of the paralax effect is most interesting. I suppose if you were doing this from an artistic rather than technical point, it wouldn't matter all that much provided the overall image was basically sound and free of obvious stitching artifacts. I agree about the lack of over...
- Thu Nov 16, 2006 2:10 am
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Stitching 101
- Replies: 13
- Views: 7954
Hi Rik, George, Can you temporarily post out the 3x3 source images I've uploaded them to this link. They are in a zip file. I've reduced them in size to 800 pixels wide. I think part of the problem may be that I don't have much of an overlap between the top and middle rows. I will run this again usi...
- Wed Nov 15, 2006 1:28 pm
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Stitching 101
- Replies: 13
- Views: 7954
Hi Rik, I wondered about the effects of camera movement on the stitching software, but I couldn't get my head round how to compensate for it. I don't have any way, at the moment, to rotate the camera around the exit pupil. That'll have to wait for another day. I've re-done the same three stacks of t...
- Wed Nov 15, 2006 5:04 am
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Stitching 101
- Replies: 13
- Views: 7954
Hi Rik, Using your comments on the settings you used in PTGui, I've made my first successful, (almost), stitched stack in PTGui. I also did the stitching in Panorama Factory, and I think that PTGui did a slightly better job, although there was not much in it. I used an old watch that I have, and jus...
- Tue Nov 14, 2006 7:49 am
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Stitching 101
- Replies: 13
- Views: 7954
Hi Rik, Thanks for posting this explanation of how you use PTGui. I've been struggling a bit trying to understand which parameters to use when compiling an image and haven't got satisfactory results yet. I'm sure the method you described here will help me understand the program better. Bye for now. ...