Originally posted by WMBP One thing that attracts me about the new superzooms, including the Pentax X90, is that the telephoto zoom has considerably greater reach than I have with my K20D + a Tamron 70-300 lens, even if I use a 1.4x converter.
No it won't. 420mm @ 1.5x crop is 630mm. Remember, the equivalent 35mm on Point'n Shoot is really the equivalent 35mm, so you need to multiply 1.5x to the Pentax focal to match.
Originally posted by WMBP This is important to me. Actually, the zoom is perhaps THE most important feature in the camera for me. I don't have the money to buy a monster zoom for my DSLRs (like the Bigma) and even if I did, I don't think I'd care to have to lug it around with me while I'm hiking and camping. If I were getting paid by National Geographic, I'd do it. Otherwise, a compact superzoom seems like a reasonable compromise on image quality, and a terrific compromise on the price.
The IQ sucks, and ISO is horrendous. It's not reasonable for some of us. You may be easier to please, so I can't tell you. But actually go out and use one and then report back.
I started with a K100D + DA 50-200 for a reason (uncropped, although I wish I would have shot this RAW, the JPEG processing on the K100D is severely dated, even back in 2006) ...
Originally posted by WMBP Oh, I hadn't picked up on that fact. That is odd. Why in the world would they release a 12MP camera that doesn't shoot raw?
Sheer memory size and microcontroller overhead required would be a start. I mean, how many PnS' are going to sell if the logic cost is the same as a dSLR+lens and cost $800+?
Originally posted by WMBP On the plus side, in addition to the spectacular, amazing zoom (28-840 FF equivalent zoom range = 18-560 in Pentax DSLR terms), the aperture range is a very impressive f/2.8-5.6. Think of it: The Sigma 50-500 goes from f/4.5-6.3, so the Olympus is a stop and a half faster at the wide end and a stop faster at least at the telephoto end. Wow.
And the 1/2.3-1/2.5" sensors have 1/15th to 1/20th the area of APS-C, so remember why that aperture is low.
Yyeah, you get f/4-5.6 or so at 75-750 equivalent to the Sigma's f/4.5-6.3 at 50-500 equivalent, so a half-stop to full stop faster. But your ISO because of the sensor size is going to be at least 2 stops worse, if not far, far worse in reality.
Comparing apples and oranges at this point dude. Trust me, I've had a superzoom and it's no comparison. They are not so small either, hence why if I'm going to carry a PnS, it's going to be a ultra-compact.
The two lens flip solutions are the best I've seen yet -- keeping the sensor a bit bigger, but more range options. Frankly, I'd like to see a vendor come out with a two PnS camera approach -- one camera for wide (which already exist -- 25-125mm equiv is perfect), one camera for tele (say 120-600mm equiv). But the market is going to be questionable, because most consumers don't know any better.