***DSLR/Photography MegaThread***
- Thread starter nocturn
- Start date
Thanks!
As for the single shot HDR, in this case it was just one shot, taken in RAW, exposed for the wall. I exported it from Lightroom to Photoshop 3 times, one at -2 stops for the highlights (and you can see where it clips where the florescent tubes all of a sudden just go to white), one at the as shot expose, and one pushed 2 stops for the shadows. I layered them all up in Photoshop with the shadows (the one that was pushed to show the dark areas) at the bottom with no mask, the proper exposure in the middle with a white mask (so the whole layer is showing and now you can't see any of the shadow layer), and the highlights on top with a black mask (so now you can't see it and the as shot exposure layer shows through, you can hold down alt while clicking the new layer mask button to get a black mask). Then I selected the highlights layer mask in the layer dialog, and with a white paintbrush painted the area of the tubes to reveal them, then selected the as shot layer mask, and with a black brush painted the dark shadow areas where I wanted to see more detail.
BleedingPurple
Prospect
Pics from east coast:
Ghost Busters library (actually Columbia Library, also Spiderman Library)
[IMG]http://i84.photobucket.com/albums/k35/tuttle5/SamPage_20071224_4686.jpg
My Favorites. Very cool.
BleedingPurple
Prospect
HUH? LOL I've obviously got a lot to learn!
HeShootsNScores
the Power in Powerplay
so... whats the plan? We just going to post the pics here then? Or should I do the flickr thing....?
BleedingPurple
Prospect
Sounds good. Question, FBJ... Where is a good site to host a photo so that you can thumbnail it to the thread but then people can view the full-size image if they like?
I tried to send you the full-size image of the lake picture via PM but I think the link only works for me because it's my image. Did the link work for you?
BleedingPurple
Prospect
That's exactly what I was thinking, RR! I thought there is a limit to the size of our photo that we upload to the Gallery in LGK, no?
Edit:
Test...
Sweet, it worked. (Now if I could only figure out that damn Multi-Quote button!)
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BleedingPurple
Prospect
It's actually pretty easy now that I figured it out. Just above the mountain picture icon to attach an image, click the "paperclip" to attach image files by uploading or by hyperlinking.
Yes, you can attach a bunch! I think this could definitely work for those hosting their photos on LGK.
It looks like 1023 X 768 is about the limit that can be uploaded to LGK.
Edit: If my math is right, you can attach about 6 thumbnails with a jpeg thumbnail maxed out at 19.5 KB, you can attach up to 121.6 KB in a post for approximately 6 thumbnails.
It looks like RR has special privledges (obviously) and can upload images to the gallery that are larger than the 350K bytes that all of us are limited to.
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BleedingPurple
Prospect
Hey Glenn, when did you become a Mod? Moving up in the world, eh?
It's only for purposes of the Photgraphy Challenge thread. I won't be doing any other moderating.
Hooper Camera called! My extension tubes are in!!!
FINALLY I'm gonna get some LENGTH!
I'll post some pics in a bit.
Okay these things are sweet!!
Promaster makes these extension tubes. There's no optics in them whatsoever, so they're not very expensive (about $150). Three extension tubes to the set, a 12mm, a 20mm, and a 36mm. You can use them in any combination. All they do is move the minimum focus point of the lens closer to the camera.
To minimize motion blur, you take the lens you're using and add its focal length to the length of the tubes you have installed to find the minimum shutter speed you want to meter for. For instance, my 50mm with the 36mm tube between the lens and the camera gives me 86mm of lens. Rounding up to the nearest available shutter speed, I'm looking for a minimum of 1/100th of a second. So I set my camera to Shutter Speed Priority and 1/100th of a second and let the f-stop fall where it may. Typically, you'll need a LOT of light in order to get the f-stop to close down for any appreciable depth-of-field. direct sunlight or strong studio lighting is advisable to get the f-stop to around f/8 to f/11.
Here's the test pics I did. Really shallow DOF because of the indoor lighting and open f-stops, but it'll give you an idea of the amount of magnification available. These are all uncropped images.
Here's the 50mm lens by itself:
Here's the 50mm + the 12mm tube:
Here's the 50mm + the 20mm tube (not much difference between the 12 and 20mm tubes):
Here's the 50mm + the 36mm tube:
And here's the 50mm lens with all the tubes stacked behind it:
Cool, eh??
Minimum focus distance decreased to about an inch with all the tubes stacked between the camera and the lens!
Images are MUCH sharper when better lighting is available and the camera is mounted on a tripod. I'm going to try and get outside in a little while to get some better examples.
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