Originally posted by mr. jef In comes the Zenitar
It's a very good lens, and well-loved by man. I've had fun using it when I've borrowed it. The fisheye effect is actually subtle enough on APS-C (the most "fishy" parts of the image are outside the crop area) that you might not notice it in landscapes. And it *can* be corrected in PP.
Here's a couple of image from it that I happen to have posted, with no special distortion corrections applied:
In the end, I decided to get the DA15 instead, but obviously, tht rather more expensive.
Quote: i looked at the Tamron 17-50 2.8, which costs around 350 euros (which is a bit expensive), and the Pentax 16-45, which runs at 250 (there's a cashback promo on pentax for the moment, it actually runs at 300). The Tamron seems to have the edge with the 2.8 diaphragm, i like using DOF or the lack thereof and with the 4.0 of the Pentax, i don't think i'll have a lot of room for playing.
That kind of depends. A common way to use a wide angle lens is to get really close to a subject so it fills much of the frame, with a wide background behind it. Because your distance to subject is so short in these cases, you get surprisingly shallow DOF. Of course, not *as* shallow as f/2.8. But 16mm is also noticeably wider than 17mm, so you do gain in flexibility there. And really msot landscapes are taken stopped down.
Quote: i have a slightly diverging question about APS-C versus full frame: i know the field of coverage of the 50 mm on digital is equal to what a 75 on film would give me, but does it also bring me the other qualities of a portrait lens? I gather i mean by this what every telelens does, apparently 'flattening the image a bit' (i don't know how to word this) and setting the subject apart.
Those qualities that are commonly attributed to telephoto lenses actually have nothing to do with focal length, and everything to do with distance to subject. A telephoto lens appears to flatten features for one reason and one reason only: because they make you standard further away to take the picture. If you took a picture with your 28, your 50, and a 100 from the exact same spot, and cropped the former two to match the latter, you would be completely unable to tell the difference in perspective. You might see a difference in DOF depending on what aperture you used, but that's under your control.
I find 50mm on APS-C too short for the kind of portraits I tend to like - that is, it either forces me to stand too close to my subject to fill the frame, or if I stand farther back I have to crop to get the framing I generally prefer. On the other hand, 100mm is on the long side - I have to be further away thn I'd prefer to get the framing I like, or I get tighter framing thn I'd prefer if I standard at what for me is an ideal distance. My DA70 is perfect for me more often than not. But I do like my M100/2.8. Even if the one you found is not ion good condition, this is an easy to find lens. I just noticed a couple on KEH.com for less than the cost of any of the other lenses you are considering. Here's an example, showing off the tight framing you get if you don't stand back a bit:
But I don't use it for portraits much; it's more of a concert lens for me.
If you're looking for other relatively cheap alternatives in that range, you might consider the M85/2, which usually goes for a bit over $200 (USD). I think there's one on the marketplace forum right now.
No idea if the Jupiter focuses to infinity, but I can't imagine why it wouldn't - is there something that made you suspect it wouldn't?
Quote: romanticwise i prefer the primes
Then I'd say, don't get rid of your current primes, even if you get a zoom also. I've got the 18-55 and use it here and there, but I prefer my primes.
Quote: Of course a voice in my head also says that i should be able to tell every story i want to tell with a 28 and a 50, that voice might be right.
I used to hear a similar voice. Well, in my case, I use a 40 instead of a 50, and I also have longer telephotos. But I got by without anything wider than 28mm most of the time (my 18-55 usually stays at home). But I have to say, I am loving having a true wide angle now in the DA15. The Zenitar is enough larger heavier that this actually influenced my decision, but of course, it's not really that big or heavy compared to other wide angle lenses, and really, the IQ is quite nice. So I'd get that without hesitation first, then decide if 50mm cuts it for portraits in your view or if you need something longer to get your the framing you want at the shooting distance you want.