Cambridge, Charles River
Originally uploaded by mehampson
This image was made from seven photos taken on a bridge over the Charles River, in Harvard Square. The night before had seen strong, warm rains, and a cooler front was moving in, causing high, thin clouds and choppy water.
I made two copies of this, in Photoshop CS4 and in the open-source Hugin. Both of them struggled a bit, since I was using the wide end of the 28-105mm f/3.5-f/4.5 USM II zoom lens -- there's a bit of distortion in each shot that they had to account for, but both did a pretty good job in the end. Flipping between the two merged panoramas, I don't see a great difference between them. This image is from CS4, because it happened to be in exact 3x5 proportions and didn't need any further cropping; otherwise it would have been a coin toss which to upload.
And I also made a copy in Canon's Photostitch. The interface was so simplistic and the results were so bad (it laid out each of the seven photos next to each other in a fan shape and blended the edges, with no overlapping or exposure blending at all) that I couldn't see ever using it for any serious work. Useless. I uninstalled it.
I'm only using CS4 as trial; it's a bit easier to use for panos than Hugin is, but Hugin isn't hard. I know how silly it is to not post the Hugin image alongside for comparisons, but the images are big, and frankly look basically the same; at any rate, Hugin is open-source and free, so I'd say just download it and give it a try.
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Wednesday, December 16, 2009
Wednesday, December 2, 2009
Domke F-6 Ruggedwear review
Now, I have to admit, I can compare the Ruggedwear model to the regular Domke F-6 Little Bit Smaller Bag
I've heard that normal canvas bags tend to shed small fibers as they age, which can get on DSLR sensors. The waxwear bags are so new, I don't know if they've been around long enough to tell whether they suffer from this problem or not.
Water beads on the surface, but it's not watertight -- the sides near the strap rings are a bit exposed, and I would expect some water to get in if you're caught in a driving rain. Folding the sides of the top down after you close it will nearly eliminate the gap, but it won't quite do this on its own. I'm not sure how much water the bag will wick off of the gear its carrying, but probably less than a normal canvas Domke. From what I hear, even the normal Domkes are at least a little water resistant as well. I hope you'll forgive me for not doing an exhaustive test comparing the two, but I think if absolute waterproofing is a high priority for you, you're looking at a whole different class of bags anyway.
The F-6 is built well, and feels like a heavy-duty camera bag. There's no padding, except for the bottom and the insert, so the lenses are pretty well protected, and they're the most fragile bits anyway. The insert has four sections, and the Canon 100mm f/2.8 USM macro lens (non-L) with reversed hood fits exactly in one to give you an idea of the size. There's a zippered pocket on the underside of the top, and on the front. The clips that close the bag are amazingly strong, and take some effort to open, which I like. The strap has a pair of rubber treads along the underside, for traction on your shoulder, and adjusts easily to a comfortable length. It also has a removable hand strap.
This is a great bag for carrying around a modest kit. If I had more big gear to haul, it wouldn't be able to carry everything, but it's not meant for the role of "whole studio on your back" anyway. I'm a big fan of carrying minimal amounts of stuff, and this is an ideal walkaround bag, or even storage bag for medium-sized kits. There's not much room for me to grow into this bag, but I'll definitely pick up a Domke 700-02A F-2 Bag (Brown Waxwear Finish)
As for the Ruggedwear vs. normal canvas, I'm glad I spent the extra money. I think I'd like the olive or sand color better than the black, but I do really love the weathered brown color of the waxed canvas. And I shoot in damp and drippy environments often enough that the extra touch of protection is probably going to be useful.
Update: One month later, I still love the bag, and I'm no longer concerned about the possibility of gaps along the side of the lid. This weekend I brought my gear with me to work, in a commute that involved, I kid you not, a ~1 mile walk through blizzard conditions each way. Despite the cakes of snow I had to brush off the lid before I could get to my camera once I got indoors, everything in the bag was perfectly dry.
Update 2: I've found that removing the padding from the sides of the insert lets the bag collapse in a bit better when it's partially empty.
By the way: Purchases made through the links provided here support this site and my photography. Please be sure that I stand by my recommendations, and only ever suggest items that I would spend my own money on.
Domke F-6 Little Bit Smaller Ruggedwear Bag
Domke F-6 Little Bit Smaller Bag (Olive)
Domke 700-02A F-2 Bag (Brown Waxwear Finish)
Tuesday, November 17, 2009
Floating foliage, reflections
Floating foliage, reflections
Originally uploaded by mehampson
Shot at a pretty high ISO, since I was using a circular polarizer and the light was fading. Digikam really does a great job of luminance noise reduction; with my noisier shots I'm exporting from there, with RAW noise reduction set to about 80-100, and then doing a selective Gaussian blur and unsharp mask in GiMP, both at a threshold of about 15-30, depending on the shot. The selective blur cleans up the last bits of noise in defocused areas, and the sharpness just tightens things up a bit.
Originally uploaded by mehampson
Shot at a pretty high ISO, since I was using a circular polarizer and the light was fading. Digikam really does a great job of luminance noise reduction; with my noisier shots I'm exporting from there, with RAW noise reduction set to about 80-100, and then doing a selective Gaussian blur and unsharp mask in GiMP, both at a threshold of about 15-30, depending on the shot. The selective blur cleans up the last bits of noise in defocused areas, and the sharpness just tightens things up a bit.
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Thursday, November 12, 2009
Green metallic bee wings
Green metallic bee wings
Originally uploaded by mehampson
I'd stopped posting photos directly here for a while because I'd gotten a little lazy about considering them "real" posts, but hey, why not get some more pictures up here. I don't know how I missed this Agapostemon shot from this summer; lesson of the day, always remember to go back and look at what you got.
Originally uploaded by mehampson
I'd stopped posting photos directly here for a while because I'd gotten a little lazy about considering them "real" posts, but hey, why not get some more pictures up here. I don't know how I missed this Agapostemon shot from this summer; lesson of the day, always remember to go back and look at what you got.
Labels:
images