I'm doing hard drives, CPUs, and motherboards. Each one is quite different.
The hard drives are middling-difficult. The first thing I discovered was that you can't just point and click. To start with, you need to decide if you are going to go for a formal view or an informal view. If you want a formal view - i.e., the drive centered in the frame like in a parts catelogue, then it has to be pretty close to exactly right. You only need to be ~5 to 10 degrees off dead centre to make the drive look very misshapen.
(Hmmm... I was going to put an example here, but I seem to have purged my site of every last example of this particular infelicity. Lots of others to go though yet though. Better drag one out and FTP it up.
That's a particularly bad example, and I've cropped it very close to make it look worse yet (with the dark coloured drive against the light Storage Forum background), but no one could miss those errors.
In a long shot, with plenty of background to surround the drive, you can get away with this sort of thing, at least a little of it, especially if you make sure that there are no semi-parallel lines close to it. The trick here is to shoot the drive against a background that is roughly the same color as the background of the web page where it will eventually appear.
More important though, you have to be
exactly over the top of the drive. Even a tiny bit to one side or the other will cause distortion.
So: for formal shots of hard drives, and I'm sure that opticals will be the same, the rules are (1) shoot against a web-page coloured background, (2) shoot from exactly overtop.
But there is more. You have to shoot from a reasonable distance too, or else you get fish-eye distortion. Look at this example:
It probably looks OK at first, especially if you're not familiar with the particular drive, but the
real drive does not bulge like that one. I've almost got away with it in this shot (a) because the drive will be unfamiliar to most people and unlike, say, a WD400BB, it doesn't have straight edges anyway, and (b) because it's not a formal straight up and down shot. By having the drive on that 30-odd degree angle, and by also by having it set against a dark background (to suit my page - it doesn't suit Storage Forum), the effect is hidden.
One last thing: you have to shoot by daylight. Direct sunlight is OK if you think about where the shadows are (and you can have a lot of fun with shadows if you go all informal and creative), cloudy days are OK too, until about the last half hour or so before dusk when it gets too dark for good results. With a cheap camera, probably
anything under $3000 or so, you can't take formal shots by artificial light. Here is what happens if you try:
Notice two things about it: first, the obvious - the artificial lighting makes it look terrible. This one was taken without flash. With flash it is much worse if you are anywhere near directly over the drive. Second, that not-quite-over-the-centre effect I mentioned above. Again it is masked, to some extent, by the black background I shot against.
The
only way to shoot formal shots by artificial light (and you get lots of time off during the day, right?) is to invest in some really serious lighting gear. I don't know how much you'd have to spend, but probably $500 or so. We just don't realise how much brighter the sun is, even on a dull day, than our puny 150 Watt globes. I tried 7 100 Watt incandesent globes in my small front room and it wasn't even close. Not to mention the nightmare of trying to position things so that they didn't reflect off any of them.
You
could use a seperate flash gun, one that you hold off to one side and is triggered by the camera but without triggering the camera's own built-in flash. Any camera over $3000 should let you do that.
Mind you, the effects of artifical light can be rather beautiful. Look at the colours thrown off by this angle:
That would be worth going back to and re-shooting next time I am stuck for a way to make yet another look-alike Samsung drive appear fresh and attractive.