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Huh? 840/28 = 30x

I second the recommendation for the Sigma 18-50, it has served me well.

In other news, a man has rolled the number six on a dice 5 times in a row. I'm not saying there isn't anything to global warming etc but we do need to keep sight of the fact there are statistical...

Only 5 years? It's a cheap camera, not a car. Consumer electronics go out of date very fast so aren't designed to last particularly long. In some cases they are designed not to last very long, and I...

Thanks, incredibly helpful post! :D Luckily I live out in the sticks so there isn't a lot of light pollution, tiny bit on one side of the house from a town about 10 miles away but not a lot. Just...

So, christmas has seen me gain a telescope, DSLR adaptor, and a motor drive, and I'm looking to (Weather and location of 4 D size batteries permitting) get out and take some photographs sometime in...

The chances of anything going wrong with a good quality battery are very low. A few people have been killed by cheap batteries in phones, the rate is a bit over 1 a year in China where there are...

If a $6000 dollar telescope counts as 'Amateur' astronomy to you, I'm sure splashing out a few hundred on a used DSLR won't matter. I enjoy a spot of amateur astronomy too, but I use a pair of...

If people aren't going to post, they don't really need to be registered. Nobody is saying people should be stopped from reading the forums or anything like that, just that accounts that have been...

That's the way of things with forums. Most people register to ask for help with a problem then never return after it's resolved.

Based on his history, I'm pretty sure he DID mean it that way. And Razr, troll isn't an infantile word. It actually comes from the following definition:



It refers to the way people...

Because they want to. Next question? :)

You don't stay away. You periodically come back, insult people for the sake of causing an argument, then leave again.

As far as I know, changing the ISO alters how the electrical pulses generated by the sensor are amplified, so it isn't really a direct alteration of the sensor itself, is it?

The sensor is just a physical capture device. The way it observes light can't be modified directly, only by either putting a filter in front of the sensor to alter the light hitting it, or through...

I second this.

http://www.newscientist.com/article/dn19054-18thcentury-painters-give-photography-new-perspective.html

Interesting article, and comes with two links to panorama software using the methods it...

As to fixing it, what software do you have? Most image processing software these days has built-in tools for fixing distortion of this nature. I don't know how well it would work in this case but...

As said above, try not to get the pipe. I'd also find a slightly more substantial and brightly coloured bit of waste than the cup, and maybe pilfer a flower from somewhere and perch it as...

DPI has nothing to do with settings, it is only used for printing. Most printers automatically choose the correct DPI for the size you are printing I think, but you can manually adjust it somewhere...

I think you still get depth of field. The idea of 3D is to send a different image to each eye to simulate the way our vision works in real life, giving us a 3D image. But each image has to be taken...

I've been in the water damage situation before, I was stupid enough to leave my MP3 player in my pocket once and it went through the washing machine. Worked fine a couple of days later - Electronics...

In relation to the 3D technology - For HDTVs, I know that two images are projected at once, each with the light waves polarised in different directions corresponding to the glasses you have to wear...

For future reference, if something gets water in it you should take the battery out and leave it well alone till it has very thoroughly dried out. Turning the power on before it is dry is a bad idea,...

I find the idea of people walking round an art gallery wearing plastic 3D goggles staring at TV screens on the walls quite amusing. :p