Search results for 'back focus' - page 648
Porst 55mm F1.2
I owned one of the Porst 55/1.2 lenses and I was quite pleased with it. But one thing bugged me; When using it on my MZ-5, I couldnīt get the focusing indicator led to light up when foucusing. Not really a problem, but it felt like the lens was too soft wide open for the camera to register the focus...
Posted by matsoberg on 13/10/2006 - 20:19
Porst 55mm F1.2
The Porst 55/1.2 was made by Fuji, according to my camera rapair man. Heīs been in the trade for about 40 years, so I guess Iīll just have to take his word for it. I'm sure I'd seen something online saying that it was made by Tamioka, which would make sense as they also sold their own F1.2 lens, how...
Posted by niblue on 14/11/2007 - 13:25
Pentax-A 50mm f2.8 macro
Hi, I have the FA version of that lens (manual focus, right?) Not that it makes much difference. Macro is mostly manual focus anyway. I'm not sure what the added mag factor is (1.5 times?) but it works in your favour. I use it for flower shots and even as a decent standard lens when I travel bec...
Posted by Bokeh Bob on 16/03/2006 - 04:51
Going Macro
Fernando, I have the same 70 - 300 mm APO sigma lens as Mannesty. The following is not cropped from the original 300mm, 1/180 @ F8 ISO400, I hope it gives you an indication of what you might expect to get magnification-wise. This photographers' eyes could do with a bit of focussing, as I...
Posted by Ammonyte on 10/03/2006 - 15:42
Going Macro
Excellent pic, background nicely out of focus to highlight the main subject. I like it. I have the same Sigma lens too, I just haven't had the chance to put it through its paces yet. SharpenOmatic can be downloaded from Matt's web pages as a PhotoShop Action. It saves a lot of time running throug...
Posted by Mannesty on 29/04/2006 - 18:39
50mm Sigma f/2.8 macro
How useful are you finding AF for Macro? I've only used an old manual focus macro lens so far but was considering getting something more modern.
Posted by niblue on 11/03/2006 - 16:51
Aaaargh!!!! No! No! No!......
Brian, Aaaargh! There was this thread a while back: https://www.pentaxuser.com/forum/viewtopic.php?t=1831 Hope that helps! Matt
Posted by MattMatic on 13/03/2006 - 20:30
Aaaargh!!!! No! No! No!......
Hi Niblue, can't say I recommend them yet, but there's few about locally. I bought a Tamron 28-200 on eBay that was broken on arrival and the seller was refusing to take it back, had to get a statment that it was broken beyond repair to claim my cash back through Paypal, the guy was nice and help...
Posted by McBrian on 13/03/2006 - 22:37
Aaaargh!!!! No! No! No!......
Well their back, but have to say I'm a bit (a lot really) disapointed in the outcome. First the A*300 proved to difficult for the repairer to even open up, so it's back in the same state as it was. The FA135 f2.8 looked as though it was fine, nice and clean no evidence of any damage once the fugus h...
Posted by McBrian on 20/04/2006 - 19:46
SMC Pentax-DA Fish-Eye 10-17, pure eye candy
8) Just grabbed one off the rack and I must say this is a truly inspired piece of ashperic plastic. Absolutely lovely. First a bit of background: I previously owned the 17-28 this lens replaces. That is actually one of the top 10 lenses ever made by anybody for its unique design. But I lost the ...
Posted by Bokeh Bob on 16/03/2006 - 04:04
Auto-Takumar lenses ?
Hi all, I recently bought a few Takumar lenses and one of them is an Auto-Takumar 105mm 1:2.8 which I was rather hoping to use as a portrait lens but I can't make it work on any of my Pentax cameras (Super-A, P30, ist-D, ist-DS, MZ-6, MZ-S). I think this may be because modern Pentax SLR's (my old...
Posted by Mannesty on 17/03/2006 - 11:00
pentax DA50-200
Ted Your last post came as I was composing this but just to let you know I have the Pentax 55-200 DA and I am quite pleased with it. It is the perfect compliment to the 18-55mm on my DS and these two very compact and light lenses will give you a 28-300mm equivalent range. This lens is probably no...
Posted by photo*ist on 25/04/2006 - 20:18
pentax DA50-200
Phew, I was very worried for you Ted. I did some research on BuyDig when you ordered and found many unhappy customers that had ordered goods from them only to have their credit card charged even though they back ordered the item. I'm not suggesting they are dishonest, just poor business practices b...
Posted by photo*ist on 10/05/2006 - 05:11
lenses
Fast lenses - Advantages * Work in darker surroundings * Able to use faster shutter speeds * Lower f-stops can isolate the subject more effectively Disadvantages * Heavier * Expensive * Can be soft (ie not as sharp) * Focus becomes more critical at lower f-stops It depends what you w...
Posted by MattMatic on 22/03/2006 - 11:47
Zoom lens question - should i?
Ok i currently have a pair of sigma zooms (bought as a twin pack when the IST D body was bought new a couple of years back) 28-80 55mm Filter Macro f3.5-5.6 100-300 55mm Filter UC f4.5-6.7 Now i see online a few lenses, also sigma 28-300mm F3.5-6.3 Aspherical (67mm) Ģ99 70-300mm F4.0-5.6...
Posted by dexteruk on 23/03/2006 - 00:33
Zoom lens question - should i?
From the sigma website: ASP (Aspherical Lens) The aspherical lens complex allows freedom of design, improved performance, a reduced number of component lenses and a compact size. APO (APO Lens) In order to attain the highest quality images, the APO lens has been made using special low-dis...
Posted by Fernando Terrazzino on 25/03/2006 - 01:46
FA primes vs DA primes
This is my first post, so hello to everyone. I am new to photography (unless you count the SF7 I bought in 1989 with which I shot all of about 20 rolls of film before slinging it in the cupboard). I trip to New Zealand in Nov 05 prompted me to buy a *istDS with the DA18-55 and DA50-200 zoom lens...
Posted by PygmyTwittle on 24/03/2006 - 16:44
FA primes vs DA primes
Has anyone compared a DA40 and FA43 back to back? Somebody can correct if I'm wrong but I understand the DA40 shares the same optical formula with the old M40. If that the case and sharpness is what you want to compare you can use Yoshihiko Takinami's website to compare it: OTOH, I guess that ...
Posted by Fernando Terrazzino on 24/03/2006 - 21:19
macro question - extension tubes vs a macro lens
David, The best thing is to try it! You can use extensions on anything. The wider the lens, the closer you need to get. It can be useful to use a small tube on a telephoto as this allows you to focus closer than a telephoto without tubes. However, a 50mm is often cited since they are the most r...
Posted by MattMatic on 27/03/2006 - 22:06
macro question - extension tubes vs a macro lens
It also depends on what you want to get close to. I tend to use my Sigma 70-300 APO (with macro) for outdoor flower & bug shots; extension tubes on a 50mm lens indoors on a tripod; a reversing ring attached to a 28mm lens on a tripod on a microfocusing plate as that gives most control over focu...
Posted by Ammonyte on 28/03/2006 - 19:16
