Originally posted by Marc Sabatella True, but you should also note that noise levels on most APS-C digital cameras are far below what most films could deliver - especially given the ability to easily perform NR on digital images. A common comparison made is between ISO 1600 on digital to ISO 400 on film. So in that sense, an f/2.8 lens on digital really provides the same basic exposure options as an f/1.4 lens on film. I'm sure that would have to be part of Pentax's thinking.
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(Marc, this is not directed at you. What you wrote is the same thing I have heard from many other people.)
And this line of thinking is where the promise of digital broke down...
Way back in the early 90's a couple of guys from Kodak & Nikon came to my college photo class to talk about this amazing new future that was in store for all of us, the digital camera.
"Imagine a camera where the film can instantly shift from an ISO of 1 to 1 million with no loss of image quality! Imagine being able to shoot at f1 on a bright sunny day, and being able to shoot handheld at f22 a scene lit by one candle!"
We were essentially told that we would be able to shoot at any f stop at any shutter speed at any time and get a proper sharp exposure. It was supposed to be so cheap that everyone would buy DSLR's, and the P&S market would disappear.
I was promised a future where the cameras were inconceivably better than the film cameras they were going to replace, not almost as good.
Someone please tell me, why can't Pentax produce an inexpensive AF prime? For example, take the old 50mm f2 formula, put the new "digital" coatings on it, put it into an AF housing, and make it the optional kit lens. They could even sell it separately for roughly $150. The problem is that Hoya doesn't want to run Pentax that way. They would rather give you the can of food and then rape you when the time comes to buy the can opener.
Man goes to buy a camera. Pentax comes along a says "Buy the camera and we will throw in this lens for next to nothing."
A couple of months later the man decides he has improved his skills enough that he wants a faster lens. Pentax says to him "We can sell you this 40 year old lens design for $429.95." The man replies "But I only paid $600 for the camera!"
I'm sure some of you will say that it is impossible for Pentax to produce a good $150 prime. Notice I did not say exceptional. If pentax can produce a $200 WR 18-55 zoom lens, they can dust off an old optical formula 50mm, put the new coatings on it, and slap it into a new AF skin for $150. They could probably do a f2 50mm for $90 and make a profit on it. The reason they don't is because they would loose sales on the $430 model. If they made it even halfway decent it would probably steal some sales from the $750 f1.9 43mm limited. Yes, I realize that the 43 has metal construction, that the bokeh is so beautiful that it makes Marine drill sergeants cry, that each copy is individually blessed by the pope, and that the optical formula was given to Moses by God at the same time as the ten commandments. Cursed be the man that does not think that the FA 43 Limited is not the greatest accomplishment of man! But out here in the real world, is it really $600 better than a modernized f2 50? I don't think so, and I highly doubt that the average joe standing in a camera store is going to think so either. Just set the two on a counter next to each other with the price tag showing. Considering how small the old A series f2 50mm was, it would probably even steal sales from the DA 40!
Thank goodness that there was a good, fast, and inexpensive AF prime made back in the film era. There have been many shots that I would not have been able to get with anything slower than my 50mm f1.7.