Resolution of digital cameras.

How close are digital cameras to having the resolution of a good 2 1/4 by 2 1/4 single lens refelxe camera like the Hasselblad?

 

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Non-digital film doesnt have pixels...unless you want to think of molecules as pixels.

 

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But film does have grain. The minimum resolution 'element' of film is a rather large clump of molecules, and the effective resolution depends on many factors, such as the particular chemistry used, the speed of the film, how the film is processed, and so forth.

In general I would hazard a guess that the best digital cameras can rival film.

 

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How many pixels is that?

 

I said it was just a guess.

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I've heard that digital cameras are starting to replace film in professional applications, so the resolution has to be getting close.

 

You can blow up a negative to any size you like, so film cameras are probably still used for large poster sized prints.

There is also the question of speed. A 20 megapixel camera is going to be slower recording all that data before the next shot...esp. in RAW format.

 

Ah, no. You can blow up a photo until the grain starts to show. Although since you rarely look at a poster from 10 inches away you could likely get away with it. But for the highest resolution photos they probably do use film, especially large oversized format cameras.

 

I think I used to enlarge a square inch from part of a color transparency up to 11 by 16 and not be able to see anly loss of detail. That was circa 1955-1970. I suppose that film might be faster now, but with no more resolving power.

I am certain that I used to enlarge a small part of a 2 1/4 by 2 1/4 transpaency up to 8 by 10.

Can any of the digital cameras do that well? I asked this question due to seeing a lousy 8 by 10 photo made from a digital camera, which was probably not the best available.

Are there any digital camers for use in a studio which produce a 5 by 7 or 8 by 10 image without enlarging from a smaller area ?

 

Its more likely the fault of the printer.

Seven or eight megapixels should give you enough detail for an excellent 8x10 print...as long as you have a high end printer using glossy paper.

 

8 Megapix should be fine for large posters too.

Unless you print it, 3 Mega does the job...

 

The printer, and the paper you are printing on, can mess up the quality of a digital image if it's not good enough. I don't know much about digital vs analog though, I just like taking pics with my 6 megapixel.