Forum:
Q & A
Thread:
hints for indoor panos
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Re: hints for indoor panos
Posted: 23 Jan 2009 at 18:44 GMT
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Another technique for dark corners is to use a diffused flash close to camera set to provide a slight fill, underexposed 2-3 stops.
Naturally, beware of reflections.
Ed
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Forum:
Q & A
Thread:
What floorplan software do you use and why?
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Re: What floorplan software do you use and why?
Posted: 23 Jan 2009 at 0:13 GMT
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Check Intellicad, (CADopia) A good low cost alternative to Autocad.
Smartdraw also works, but for me, the more automated, the less control.
Ed
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Forum:
Q & A
Thread:
360 X 360 without a fish-eye
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Re: 360 X 360 without a fish-eye
Posted: 29 Dec 2008 at 2:18 GMT
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Hmmm. In terms of optics, I believe it's just a 360x180.
Some folks seem to use 360x360 for marketing pizazz, in case customers are "confused" by 360x180.
Some folks seem to use 360x360 for the maximum rotation of the rendered file in a player.
To make a donut with Photoshop:
Take equirectangular image, what is on TOP will be in the CENTER of the donut, so rotate the image 180deg as necessary.
Resize the CANVAS to square.
Apply Filter, Distort, Polar Coordinates, Rectangular to Polar.
That's it.
Regards,
Ed
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Forum:
Q & A
Thread:
Merry Christmas - stereographic
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Re: Merry Christmas - stereographic
Posted: 24 Dec 2008 at 18:29 GMT
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Wonderful pano! Thanks & have a great new year.
Regards
Ed
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Forum:
Q & A
Thread:
Stitch Speed Test on different machines
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Re: Stitch Speed Test on different machines
Posted: 24 Dec 2008 at 2:49 GMT
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Henry Smeets original post, using his sample images and PTGui, etc.
Pretty mind-boggling performance differences!
Ed
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Forum:
Q & A
Thread:
Stitch Speed Test on different machines
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Re: Stitch Speed Test on different machines
Posted: 23 Dec 2008 at 2:34 GMT
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Dell Vostro 200 E2160 Dual-core
1.8gHz, 3gB RAM
XP, SP2
Warp ~20s
Enblend ~18s
Total ~41s
Ed
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Forum:
Q & A
Thread:
Centrica hosting
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Forum:
Q & A
Thread:
To buy or not to buy? And how?!
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Re: To buy or not to buy? And how?!
Posted: 19 Dec 2008 at 3:15 GMT
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The Zenitar and the Peleng are VERY manual - focus and aperture. Further, on many cameras the metering is essentially disabled. However:
Focus is not an issue because the DOF is so large with a fisheye. The user only needs to verify the manual setting.
Aperture becomes essentially fixed, as it should be for all exposures in the set. But it need not be set to f/16. Both lenses are more than adequate at f/8 and quite usable at f/5.6. In fact CA at f/5.6 is considerably better than the Nikon 10.5, though sharpness isn't. Final results also depend on post-processing and presentation size required.
Exposure shouldn't be an issue because manual exposure should be used anyway for the panorama set, and taking a test shot using the histogram is quite simple - in fact recommended.
Ed
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Forum:
Q & A
Thread:
To buy or not to buy? And how?!
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Re: To buy or not to buy? And how?!
Posted: 18 Dec 2008 at 19:28 GMT
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The Zenitar is an excellent lens...when used properly.
It needs to be stopped down adequately, and the user should get used to reading the histogram for exposure.
I would use it more, but for the size of the final image I am currently using. For that, the 8mm Peleng gives excellent results - considerably better than the FC-E8 on a small sensor.
Zenitar info:
www.kenrockwell.com/zenit/zenitar-16mm.htm
Regards,
Ed
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Forum:
Q & A
Thread:
16-bit TIFF. Waste of space and time?
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Re: 16-bit TIFF. Waste of space and time?
Posted: 11 Dec 2008 at 1:21 GMT
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Well James,
First you could take your set of RAW files, process to a set of 16-bit tiffs, then also to a set of jpegs.
Stitch the two sets to produce two VR images.
Now display those two and compare the results (including time to process.)
IMHO there are so many places to lose quality, from camera/lens combination, subject, program choice and settings used, that there is no simple answer.
That said, all else being optimum, 16-bit & a lossless format will give better results than 8-bit with a lossy compression format.
And you must be the best judge of your workflow.
Regards,
Ed
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Forum:
Galleries
Thread:
Pano in a House...
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Re: Pano in a House...
Posted: 8 Dec 2008 at 2:34 GMT
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Very nice!!
2 observations:
A couple of the image "closeups" differ from image view on the wall (color, contrast, etc.)
The largest "closeup," (to the right,) more than fills the screen at 1024x768 resolution. But panning down finds the "cerrar ventana."
Overall, it works well for me.
Regards
Ed
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Forum:
Q & A
Thread:
Panasonic Lumix DMC-LX3 for Panoramic Photography ?
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Forum:
Q & A
Thread:
stiching a segmented scan
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Re: stiching a segmented scan
Posted: 26 Nov 2008 at 19:10 GMT
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Roy, you might try the Canon panorama utility, PhotoStitch, that comes with all Canon digital cameras.
Load images, then in the tab "Merge", select "Merge Settings", then set to Image scanned in sections.
This will often work with images of differing focal lengths, croppings or scale, and if necessary you can also assign multiple control points.
Regards,
Ed
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Forum:
Tips & Tricks
Thread:
Wired remote - Nikon D40, D40x, D60
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Re: More Wireless remote - Nikon D40, D40x, D60
Posted: 23 Nov 2008 at 3:32 GMT
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Andrew
Just enter "wireless strobe trigger" in Ebay to see the product, that sells under many names and prices.
Mine shows TR-06 but is the same as PT-04 and appears similar to the Cactus.
The receiver unit really likes fresh (full voltage) batteries, and they seem to last. However I've gotten 23A batteries in stores that have been around awhile and are close to dead.
It comes with a PC to 1/8" cable. (I really dislike PC connectors but didn't take the time to replace - yet.)
The wireless strobe trigger & modified Nikon IR remote.
and mounted on a D40x:
Here's a mod to extend the transmitter range.
www.flickr.com/photos/25797462@N07/2429504694/in/set-72157604625194119/
The importance of this mod to me was more in achieving a solid signal at around 30+ feet rather than distance.
A similar item is the wireless camera trigger. The Canon would probably be easier to adapt using a mini-plug rather than the proprietary Nikon connector.
Regards
Ed
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Forum:
Tips & Tricks
Thread:
Wired remote - Nikon D40, D40x, D60
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Re: Wireless remote - Nikon D40, D40x, D60
Posted: 22 Nov 2008 at 8:25 GMT
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Gus said...."If you've used a wireless remote like these (tinyurl.com/6ndl75) at ebay, you will never use a wired or Infra-red remote again."
I just plugged my 4-channel strobe trigger receiver into the (above described) modified IR-remote on a D40x.
Then hand-held the radio transmitter, originally designed to place on the camera. and now it wirelessly triggers the camera via the IR remote perfectly.
Thanks for the thought Gus!
Regards,
Ed
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