24hrexposure

This is probably why your images look purple. An IR filter dramatically changes the WB by cutting out the entire spectrum above near-IR. It's often difficult to pull a decent color photo from an IR...

I docked it a half star for looking like copy-paste. However, it's a copy-paste DINOSAUR so its base score is 1000. Final score: 999½ out of 5.

The confusing issue is that Amazon has third-party sellers, and these counterfeit lens caps were sold by one. On most product pages under "In Stock" it will say something like "Ships from and sold...

Fuji X series cameras all have this built-in in manual focus mode. It's very useful. It has a distance scale at the bottom with the near and far bounds on DoF for a very conservative circle of...

These were sold by a third-party seller, not Amazon. Becoming a third-party seller is super-easy (I am one). It's like having an Ebay account. "Fulfilled by Amazon" means the seller ships Amazon...

Thank you for posting this. I saw the exchange as well and wrote up a long post about it (raising the same issues) but decided not to post it because it's such a big can of worms. Since you've...

That's like using a FF sensor (albeit square) with an APS-C lens. Few people would be willing to pay a premium for extra sensor space that they would rarely use. I personally would love to have the...

This may sound like a silly question, but I can't figure out what it accomplishes to check it. I'd expect the page to automatically advance to the next image when I select a star, and for the...

I thought the same thing. If he is talking about some other kind of distortion he should explain it, because from the photo it's not obvious that there's any curvature. Maybe he's just wishing it...

The Wikipedia page is wrong (and it needs a citation). The lower limit of 0.5 for f-number comes from the equation for a spherical approximation of a lens, where f-number = 1/2(sin theta), and...

Did you post these images to a site whose terms allow them to use the images commercially or resell them? If so, then maybe they are being used legally, even though it's in a way you didn't...

This is a good quote from the article:

"What Does It Mean in the Real World? Like a lot of laboratory testing, probably not a lot. Adapters couldn’t all stink or people wouldn’t use them. Like a...

Serial photography (lots of Xs).

Although copyright infringement is illegal, it's not theft. The legal definition of theft doesn't include copyright infringement, and in common use the word 'theft' implies that the owner cannot...

The real problem (for consumers) is that there is no good alternative to Adobe software for certain kinds of work. For them to extract rent from what is effectively a monopoly product is natural....

I had a different, much easier experience. When I signed up as a host I was immediately allowed to create 2 series. From the main Challenges page where it shows your series (below the recent...

Where did you get the "more than 1.5 stops" number? Looking at Nikon's DxOMark scores, the D800's low-light ISO is 2853, while the D7100 is 1256. This is 1.18 stops.

If the challenges are still open for submission, then you have to wait until the voting phase begins in order to vote. There is 1 week for announcement, 1 week for submission, then 1 week for...

If you can budget the extra $100 or so, a lens like the Canon 50mm f/1.8 will probably give you results you're much happier with. Try googling for "canon 50mm f1.8" portrait and see if that's the...

You can't unfairly skew anything. If you think photo A is better than photo B, then as long as you vote higher for A everything works out. What matters is the ranking, not the individual photos'...