Search results for 'back focus' - page 1194
Thoughts on non-HSM non-OS Sigma 70-200
I've seen a Sigma 70-200 f/2.8 come up for sale at a good price, which has piqued my interest as my 300 f/4 is proving a little too long for some nature shots and the 55-300 a little too slow. As an aside I've not really managed to get my 55-300 all that sharp on my K3, despite numerous attempts wit...
Posted by mattie on 09/11/2017 - 12:09
Thoughts on non-HSM non-OS Sigma 70-200
One comment on the AF was interesting, "The AF system is faster when the focus ring is on AF." Surely if it wasn't set to AF it wouldn't autofocus at all. Mmmm!.
Posted by JAK on 09/11/2017 - 19:24
Thoughts on non-HSM non-OS Sigma 70-200
I had one years ago on my K10D, fast focusing and actually quite decent at 2.8 Just had a look on my Flickr and here are a few shots taken with it. Can't beleive these were over 7 years ago. by , on Flickr by , on Flickr by , on Flickr One comment on the AF was interesting...
Posted by Mike-P on 09/11/2017 - 22:14
Thoughts on non-HSM non-OS Sigma 70-200
One comment on the AF was interesting, "The AF system is faster when the focus ring is on AF." Surely if it wasn't set to AF it wouldn't autofocus at all. Mmmm!. I did scratch my head at that! I vaguely recall having a lens with a clutch mechanism that simply disengaged the focus ring form the ...
Posted by mattie on 10/11/2017 - 09:54
Thoughts on non-HSM non-OS Sigma 70-200
I had one years ago on my K10D, fast focusing and actually quite decent at 2.8 Just had a look on my Flickr and here are a few shots taken with it. Can't beleive these were over 7 years ago. (Images removed for brevity) One comment on the AF was interesting, "The AF system is faster when th...
Posted by mattie on 10/11/2017 - 10:00
Thoughts on non-HSM non-OS Sigma 70-200
I've been pleasantly surprised by the 300 APO wide open, but I've heard a few reservations expressed about sharpness at maximum zoom and aperture on lenses such as the Bigma and 120-400 - I'd expect some compromise to image quality given the focal lengths and ranges of those larger lenses, but wasn'...
Posted by Mike-P on 10/11/2017 - 10:21
Thoughts on non-HSM non-OS Sigma 70-200
A s/h sample (bought around 2008 ) of one of the original version of the 70-200 was my very first decent AF-capable longish lens for a digital body (Samsung GX10) and it was , and still is, one of the sharpest lens I have (although it does not get that much use nowadays because of having the 100-300...
Posted by jeallen01 on 10/11/2017 - 19:48
Thoughts on non-HSM non-OS Sigma 70-200
Had my 70-200mm f/2.8 Sigster since 2004. Screw focus works fine. It's been used on all of my Pentax bodies without issue. Super sharp and good with the TC. Never seen the need to upgrade. Best regards
Posted by K10D on 24/11/2017 - 19:34
Going back to manual...
Was a bit bored earlier in the week.. Which is always dangerous. So via ebay I purchased a Pentax A 28-80 for a play.. Well £6 isn't going to break the bank now is it... So for an hour today I tried it out on my muddy boots...Well as you know it's winter... So if all goes wrong £6 for an hours en...
Posted by stub on 15/11/2017 - 18:39
Going back to manual...
That lens is sadly disparaged. As you have shown, it can produce good results. But hey - it's just another 28-80 !
Posted by davidwozhere on 16/11/2017 - 01:35
Going back to manual...
Nice, I like it. I am also a fan of the old glass.
Posted by pschlute on 16/11/2017 - 06:12
Samyang T-S 24mm F3.5 ED AS UMC Tilt/Shift
I found this link which does seem to confirm that the overhang could be an issue https://www.dpreview.com/forums/thread/4003428 Thanks, that at least answers my queries. At least the lens can be fitted on the mount, and a vertical shift reduction from 12 to 10mm (with a bit of tape to stop marking t...
Posted by RobL on 20/11/2017 - 17:56
Samyang T-S 24mm F3.5 ED AS UMC Tilt/Shift
Thank you, those are some very interesting images (the second pic demonstrates the shift impressively well). I don't have any express need for a shift lens but there's a certain itch at the back of my brain for stuff like this :)
Posted by HarisF1 on 25/11/2017 - 12:19
Samyang T-S 24mm F3.5 ED AS UMC Tilt/Shift
Thank you, those are some very interesting images (the second pic demonstrates the shift impressively well). I don't have any express need for a shift lens but there's a certain itch at the back of my brain for stuff like this :) It’s called gear acquisition syndrome! Know how it feels.
Posted by RobL on 25/11/2017 - 13:21
Samyang T-S 24mm F3.5 ED AS UMC Tilt/Shift
Ok, Samyang 24mm TS just arrived from SRS so here are first impressions. The vertical shift is just slightly inhibited on the K1 by the overhang but I don't think it is too big a deal. An engineer might be able to chamfer the edge on the lens mechanism but not me. On the K50 there is enough space fo...
Posted by RobL on 29/11/2017 - 21:51
Samyang T-S 24mm F3.5 ED AS UMC Tilt/Shift
Ok, a couple more for HarisF1. This time to demonstrate the tilt function, and taken this time in good light and in the comfort of my home. I have found turning off focus peaking in live view gives much better results not just with this lens but generally, so these were both on a tripod and remote r...
Posted by RobL on 02/12/2017 - 11:39
Samyang T-S 24mm F3.5 ED AS UMC Tilt/Shift
I have cleaned the watch up and had another go at the face: I have to say the sharpness of this lens is astounding, and zooming in on the computer it picks up every microscopic flaw. I did have another at a more oblique angle to illustrate the depth of field but some tiny hairs and an annoying h...
Posted by RobL on 26/02/2018 - 22:17
What's your view to the DFA 28-105 ?
Yes Stuart, the 5th one is at 105mm and F5.6 .... It was one of a few I took specifically to test out the close focusing and bokeh qualities, and I was mightily impressed with both, considering it's not a macro lens. The first portrait (the HSS flash one) is at 105mm and F6.7. I usually stop down...
Posted by McGregNi on 25/11/2017 - 18:10
What's your view to the DFA 28-105 ?
I use mostly the 15-30 or 28-70 on mine, sometimes I wish there was something like a modern iteration (and better built) 24-90 then I would have fewer crises what to take with me without breaking my back...The Nikkor 24-120 f4 is a great example of an FX walkaround lens.
Posted by ilovesaabs on 07/12/2017 - 21:56
A short walk with Pentax-A lenses on K-1
To put the record straight: I am mostly a Nikon and Sony user. A friend of mine has recently kindly lent me a photographic bag full of wonders - an LX body and several manual focus Pentax lenses - he has not used in years. As I was loaned a Pentax K-1, I decided to mate the full-frame flagship DSLR ...
Posted by JaroslawBrzezinski on 29/11/2017 - 00:31
