Search results for 'back focus' - page 645
Testing the 18-55mm kit lens.
How do you folks go about lens testing? I've commented on here before about the 18-55 kit lens being poor so I did a quick test at home, taking shots of a bookcase in my study from a couple of metres away. I did the following tests: 1) At 19mm against a cheap 19-35mm Pheonix AF zoom (same as t...
Posted by niblue on 30/01/2006 - 11:10
Testing the 18-55mm kit lens.
Interesting, although don't forget that lenses are designed to work at particular distances and close up to a lens chart will not be ideal for a wide angle zoom. The charts were at a distance similar to where one might place the foreground interest in a wide angle shot, so I think it is important th...
Posted by niblue on 01/02/2006 - 09:08
Pentax F-AF 100-300mm 4.5-5.6
Looks similar to the powerzoom one I had, but it's been a while since I owned it so I can't be sure. The one I had was ok, certainly a better performer than the FA 28-80 powerzoom it was partnered with. It should given decent results with on digital although I'd expect the viewfinder image to be ...
Posted by niblue on 31/01/2006 - 19:53
Pentax F-AF 100-300mm 4.5-5.6
Hi all, it turned up this morning.. 24 hours after I clicked the button. wow. Even had a skylight attached. It feels nice and solid, and balances well with the DL body. I'm just going to go and point it at something. Back in a mo. I'm on my dinner break, so it'll just be at any passing ma...
Posted by LiamD on 01/02/2006 - 13:25
Opinion on Pentax SMC K 30mm f2.8
Steve, It's an interesting fact that one or two of the DA lenses will work with no vignetting on 35mm, and most only have a small amount. There is no immutable law which says that the next sensor size up from APS-C is 24x36mm. I think it is quite conceivable that a new sensor will appear that...
Posted by niblue on 06/02/2006 - 15:58
Opinion on Pentax SMC K 30mm f2.8
Kimbo, I bought the Pheonix 19-35 a few years back from the States via Ebay as at the time there weren't any cheap wide angle zooms (other than the manual Focus 18-28mm Centon one which I already had) available in the UK in Pentax fit. It's been used on my Z1p and MZ5 a lot since I owned it and, ...
Posted by niblue on 06/02/2006 - 14:45
Pentax 28-80 AF
Hi, Just doing my rounds of ebay and found this.. http://cgi.ebay.co.uk/Pentax-SLR-f-zoom-28mm-to-80mm-auto-or-manual_W0QQitemZ7586859412QQcategoryZ15240QQrdZ1QQcmdZViewItem Before you ask, it's not me. :D For a tenner it might be worth someone bidding. You should get that back resel...
Posted by LiamD on 07/02/2006 - 20:44
Tamron sp 24-135
I had one of these for a couple of years. It was well reviewed and my expereince was that it produced very good results. It also has a very useful close focus. - good enough to fill the frame with larger flowers. But it is quite a heavy and bulky lens, and in the end I changed to the slightly less v...
Posted by amilner on 08/02/2006 - 21:00
Lens Aperture Question?
All lenses open up to full aperture when you mount them on the camera. That way, you can see to focus and frame your shot. When you press the shutter, the camera stops the lens down to the aperture you have selected. Note that when using non-A lenses (like your M), the camera [if it is a D...
Posted by George Lazarette on 09/02/2006 - 00:23
General Purpose Zoom Lenses for the Super Program
Probably the 35-70 4.0 A - constant aperture, good reputation, and has the 'A' setting so you can use program and shutter priority modes. It also has a good close focus ability (25cm). It is not all that common on the SH market. The 35-105 3.5 A also has a good reputation but is rarer still and rath...
Posted by amilner on 09/02/2006 - 17:14
General Purpose Zoom Lenses for the Super Program
Thank you both very much. I'm off to search these lenses out. Ah, George, they've got me into K mount land, where I swore I wouldn't venture. Good thing I didn't have a New Year's resolution to break, eh? What's next? Auto focus? Digital? Newfangledfalderal...mutter...grumble (hee he...
Posted by Anonymous on 09/02/2006 - 21:51
General Purpose Zoom Lenses for the Super Program
Mac, Don't worry about resolutions - I can confirm from personal experience that they are easily broken*. There's nothing easier, in fact. :-) To the other recommendations I would add the following if you want something a bit longer: M 75-150mm A really super lens. A 70-210mm Heavy, bu...
Posted by George Lazarette on 10/02/2006 - 00:19
General Purpose Zoom Lenses for the Super Program
George, I remember you highly recommending the Super Program way back when I joined this forum. I was looking for an Spotmatic F (done), and an MX at the time. Isn't it funny how fate works? Before I could get my mitts on an MX, this Super Program body drops out of the blue. You must be in ca...
Posted by Anonymous on 12/02/2006 - 22:06
SMC 50 mm 1:1.7
I've got both the A and M versions of the 50mm F1.7 and I find them exceptionally useful lenses. I also own an SMC-M 50mm F1.4 so I've had the opportunity to compare them. The F1.4 has the advantage of a little extra speed, however where the aperture ranges overlap there is nothing in it performance...
Posted by niblue on 10/02/2006 - 08:44
SMC 50 mm 1:1.7
golfdiesel, Please let us know how you like it! From what I've read here and elsewhere, it should be a beauty. I presently have a 55mm 1.8 and a 50mm 1.4 in screw mount, and while I enjoy looking through the 1.4 a great deal, I can't really tell the difference between the two when the print...
Posted by Anonymous on 11/02/2006 - 18:22
SMC 50 mm 1:1.7
Good grief, is it normal that a A50mm 1.2 gets to 260 UKP / 380 EUR ? I would really like to have one, but at this price... I should have bought some more Pentax lenses back when I got my DS. I shouldn't have waited so much, everybody wants them now, and they seem to be appearing less often. This...
Posted by Flink on 12/02/2006 - 21:08
SMC 50 mm 1:1.7
When you are viewing, at open aperture, the f1.7 lens just lets in more light and the screen will appear brighter and easier to focus manually. As for pictures, that's spot on, each lens surface shows slight reflection even with the SMC coating. Even at 0.2% reflection per surface, a six element ...
Posted by johnriley on 18/02/2006 - 12:00
SMC 50 mm 1:1.7
That darn Kim, he's all over the place. Even on the Yahoo Groups Spotmatic forum. Pops up frequently on the RFF also. Been trying to run him down. Not an easy task. Recently I had to photograph a few cameras for a client who wanted them posted on ebay. Used the ist DS with the kit lens. The...
Posted by tedwhite on 22/02/2006 - 03:02
SMC 50 mm 1:1.7
The SMC-M 50mm F1.7 is a nice little lens and very, very sharp. I compared one to the 18-55@50mm - even at F1.7 the old prime is already sharper than the 18-55 at any aperture. In the UK market £36 would be regarded as expensive for one though as you could probably get two SMC-M 50mm F1.7's for that...
Posted by niblue on 06/07/2006 - 16:24
macro lens for ist DS
I picked up one of the manual focus 55mm Vivitar macro lenses for under £30 on Ebay. I've been impressed by the results using it with my DS: It seems to be the case that pretty much all proper (i.e. prime) macro lenses are optically pretty good.
Posted by niblue on 10/02/2006 - 11:21
