Search results for 'back focus' - page 649
Tamron 28-200
Just got my Tamron 28-200 3.8/5.6 super II lens in the mail. This should be the same lens as pentax allso sold as a 28-200 allthough I do not know if the Pentax version was the Super-II edition which has a minimum focus distance of 49cm. The lens looks great, I bought it for less then half the new...
Posted by golfdiesel on 28/03/2006 - 17:03
Tamron 28-200
It was the Tamron I'd originally considered when I was looking for a 28-200 lens for use on family days out etc. I went with the Pentax one in the end mainly because the costs were similar and it was reputed to have a better multi-coating, however the Tamron was getting good reviews at the time. ...
Posted by niblue on 29/03/2006 - 13:35
Tamron 28-200
Details in the usual place confirm SMC but you can't quite read the SMC print in the picture which is just above the print of "1:3.8-5.6": http://www.bdimitrov.de/kmp/lenses/zooms/short/FA28-200f3.8-5.6.html Glyn BTW. When I look at the pictures on the above mentioned website I do se...
Posted by golfdiesel on 30/03/2006 - 18:28
Tamron 28-200
With the Pentax 28-200 the focus ring moves when the zoom is extended. With my Tamron the focusring stays where it is. I got the Tamron model 371D. [edit] from what I can see on the web, my Tamron is a newer revision of the 28-200 on which the Pentax one is based[/edit] Yes, the Pentax obviously do...
Posted by Kimbo on 30/03/2006 - 19:34
OMG
i think ten times that is a stack for a manual focus lens.... Personally i wouldn't want a lens that long as a manual as i'd be using it for sports
Posted by dexteruk on 03/04/2006 - 18:20
OMG
Hi Matt It was you huh....good on you, I have the A version so wasn't too dissapointed, I'll get one eventually. Promised myself I was finished but couldn't let this one slip by, I sold my 70-210 when I bought the Sigma f2.8, but I really miss it as it's such a good walk around lens along with...
Posted by McBrian on 07/04/2006 - 21:38
Kits lens soft
Hi Steve, and welcome to the forum, I too bought the DL with the 18-55 around new year. If you have just started with digital then you'll notice that the slight softening is inherant in all images, regardless of the lens used. I like the lens, and some do, some don't elsewhere on the forum. Th...
Posted by LiamD on 03/04/2006 - 07:21
Kits lens soft
Just to add to Liam's comment... The RAW image is always soft-ish (it's largely down to the Bayer matrix filter). It does depend on the RAW convertor, and I think I've tried them all, but I get the best results from not sharpening in the convertor at all, and then doing the work in Photoshop (my Sh...
Posted by MattMatic on 03/04/2006 - 11:24
Kits lens soft
Talk to your lab, as many are quite proffecient at sharpening images for their printers. ps.. is my Pentax 85mm soft focus sharp? I'm not sure if I'm getting edge to edge sharpness....nice portraits though...
Posted by Don on 04/04/2006 - 12:56
SMC-DA 12-24 ED AL (IF)
I started doing some resolution tests and CA tests on the 12-24, but haven't had time to finish them :( My initial findings at f4 are that the 12-24 is sharper than the 24-90, but not quite as sharp as the 16-45. If you're wondering, f4 was the MTF for both the 12-24 and 16-45, but I need to test...
Posted by MattMatic on 07/04/2006 - 11:44
Pentax vs Tokina lens lineup
My experience with the pro-spec Tokina was that they were pretty good, and back in the days I was buying them they were the only 3rd party manufacturer that fully supported Pentax with F2.8 zooms. A Tokina 16-50 F2.8 is definitely a lens I'd be interested in, but it'll depend on how the price com...
Posted by niblue on 04/04/2006 - 18:11
How sharp do you want it?
Sharpness: Pic 1 or 2 for me. By the time you get to the level of sharpening in pic 4 the reflected soft box has a defined black box around it with white artefacts outside of the box, which of course, helps to define the box in the first place. External Storage: I use a Freecom USB2.0 250Gb exter...
Posted by Mannesty on 08/04/2006 - 01:12
'Digital only' lenses - are they a good investment
The growing range of 'digital only' lenses makes me wonder, are they really a good investment ? The current plethora of digital SLR bodies mostly have APS sized sensors, IE: smaller than 35mm full frame which has spawned a range of lenses to suit this reduced size, but these lenses exhibit vignet...
Posted by Mannesty on 08/04/2006 - 14:31
'Digital only' lenses - are they a good investment
I wondered about this too before I got into digital. But it appears as though Pentax is investing a lot into the DA lenses, so there's no need to worry about being abandoned in a useless lens format. So with this development in DA lenses it tells me that Pentax doesn't consider 35mm full-frame digi...
Posted by Joshua Hakin on 08/04/2006 - 21:46
'Digital only' lenses - are they a good investment
George, Thanks for the history lesson. That magnesium flash powder was a real so 'n so though. :) I remember 10 X 8 plate cameras well. I used a Gandolfi monorail camera back in my City & Guilds night school days, a beautiful wooden camera. The concensus so far then is that APS sized s...
Posted by Mannesty on 09/04/2006 - 07:49
'Digital only' lenses - are they a good investment
Thanks Dan. I am happy with my decision to switch to Park Cameras for this lens. Especially as I recently got an email from Pixmania which I will share with the members of this forum:- Message begins:- Dear Peter, Thank you for your email, As you can read from the product information she...
Posted by Mannesty on 10/04/2006 - 16:58
'Digital only' lenses - are they a good investment
Now 2 years have gone since the first post! Let's sum up something after viewing recent product developement! Come on! Canon is realeasing its new full frame 1Ds mark 3- 21 mega pixels. Check out this link: http://www.canon-europe.com/For_Home/Product_Finder/Cameras/Digital_SLR/EOS-1Ds_Mark_III/...
Posted by fleetwoodjazz on 21/08/2007 - 11:00
'Digital only' lenses - are they a good investment
I should also mention that the coming Nikon D3 is rumoured to be full frame or at least come out very close at 1.1 cropping factor. Again, what does this tell you? This rumour has been circulating around for a very long time, even before the D40 was announced..... I see no reason for this debat...
Posted by Pwynnej on 21/08/2007 - 12:08
'Digital only' lenses - are they a good investment
Hmm. Well, if you look at what we have been progressively able to pack on a chip and with the demand for smaller and smaller devices other than high end cameras, then the cost and pixel density of small devices will be where the investment goes. And I'm sure they'll solve any interference problems ...
Posted by redbirdpete on 24/08/2007 - 10:07
'Digital only' lenses - are they a good investment
The lack of moderate wide primes with good max apertures is a GLARING omission in the pentax range which is frankly inexcusable for any decent system. The situation could be helped considerably if Pentax would just put back into production a few of the primes which it made until just a couple of ...
Posted by viewfinder on 24/08/2007 - 16:48
