A75 or A85?

[ajanica]

Is there a difference between A75 and a85, excepto for rhe megapixeles, which one
is better

[Jon]

The A85 is a 4 MP camera, while the A75 is 3.2 MP. The A75 does 2.2 frames/sec in burst as opposed to the A85's 1.5 frames/sec. Of the features you should never use, the A75 has 3.2x digital zoom and the A85 has 3.6x digital zoom.

[ajanica]

Thanks......


Do I need the extra megapixel ???
Basically Im a Doctor and will be using the cam for close-up macro
fotos and so on... what´s the drawback in other areas...

[Jon]

You probably won't notice the difference in print quality unless you're super-critical (about a 10% difference in resolution). I haven't pored over the specs in depth. I would suggest that you also look at the A95. The flip-out LCD can be a real asset if you're trying to photograph anything from an odd angle, and if you're trying to do macros of patient symptoms/procedures this might be very useful.

[scorpius]

Does the A85 produce noisier images than the A75? Can this be true because the CCD on the A85 is the same physical size as the A75, but it has 2274x1704 pixels instead of 2048x1536?

Why would anyone buy the A85?

[Ajay213]

You probably won't notice the difference in print quality unless you're super-critical (about a 10% difference in resolution).

It depends on what you print. For 4x6 prints you won't notice any difference for a "standard" dpi print (say 200-300dpi), you could get away with even less resolution. But when you start getting into 8x10 and larger is when you will notice the differences. Even then it will be hardly noticable unless you are truly looking for differences. But given the "need" by the Dr, then who knows.

Basically Im a Doctor and will be using the cam for close-up macro
fotos and so on... what´s the drawback in other areas...

It doesn't close focus all that great (you have to switch over to manual focus fairly often), and whatever you are taking pictures of needs to have a lot of light as the flash really doesn't work at all for macro work. Also you need to define "macro" a bit as well, if you need a sharply focused picture of something VERY small that fills most of the frame it may not work (perhaps with the macro lens and some macro filters) very well.

Here's a few A85 shots (and a single 20D shot for a comparison), there's a couple of "macro" shots as well. IIRC the snowglobe was shot pretty close to the limits of it's close focusing (if you'd like to see a full size, un-edited straight from the camera picture, let me know).
http://www.theajays.com/photos/a85/

Does the A85 produce noisier images than the A75? Can this be true because the CCD on the A85 is the same physical size as the A75, but it has 2274x1704 pixels instead of 2048x1536?

In theory, yes. In practice, I doubt it, but I don't have an A75 to compare pictures with.

Why would anyone buy the A85?

Cost vs features (prices from B&H)
A75 = $199
A85 = $239
A95 = $309

For me I wanted the extra mega-pixel (I print 8x10's fairly often), but I also have a 20D so the extra megapixel wasn't "needed", and the swivel-LCD wasn't worth the $70 price difference for me.

Andrew

[Don Schaeffer]

I don't even want a swivel LCD because I use a magnified viewer hood attached to the back of the camera. I have an A70.

Actually the 1 megapixel only amounts to a real .7 megapixel difference.

--Don