Search results for 'back focus' - page 1039
Fast focus for baby shots
17-70 ? ... Some apparently reject the lens because it is SDM, so I have read here. Not because of its optics.
Posted by ChrisA on 14/04/2012 - 18:21
Fast focus for baby shots
No, because of SDM failures. What I think happens though is that the SDM motors get over torqued if the lens is quick shifted. John
Posted by JAK on 14/04/2012 - 18:23
Fast focus for baby shots
Its not a pro lens and the only SDM lens that isn't (Taken by the *16-50mm) but its an upgrade to a current lens (the 18-55mm) costs more and also has better optics. If you discount the 16-45mm (I disagree that it is optically better than the 17-70mm but that's another discussion) as it's no lo...
Posted by Mike-P on 14/04/2012 - 19:16
Fast focus for baby shots
Can I conclude then that there is nothing that will be faster than my 35mm f2.4 then? For Pentax, probably not.
Posted by Mike-P on 14/04/2012 - 19:17
Fast focus for baby shots
Install 3 or 4 100 watt CFL bulbs. You'll have much more light, which will speed up focusing and enable you to use a smaller aperture, thus gaining DOF. G
Posted by George Lazarette on 14/04/2012 - 19:51
Fast focus for baby shots
Install 3 or 4 100 watt CFL bulbs. You'll have much more light, which will speed up focusing and enable you to use a smaller aperture, thus gaining DOF. G And freaking the hell out of the poor baby !
Posted by Frogfish on 14/04/2012 - 20:00
Fast focus for baby shots
Is the baby too large to go in a light tent? :lol: After a cursory read through this thread, I think you're probably right that the 35/f2.4 would be ideal (nice soft to sharp rendering wide open too). From what I've read the 40/f2.8 is pretty zippy too, but probably not significantly different to...
Posted by Pentaxophile on 14/04/2012 - 20:08
Fast focus for baby shots
Install 3 or 4 100 watt CFL bulbs. You'll have much more light, which will speed up focusing and enable you to use a smaller aperture, thus gaining DOF. G And freaking the hell out of the poor baby ! No. It won't be brighter than daylight. G
Posted by George Lazarette on 14/04/2012 - 21:05
Fast focus for baby shots
No, because of SDM failures. What I think happens though is that the SDM motors get over torqued if the lens is quick shifted. Can you be absolutely clear here, please? Are you saying that quick-shifting an SDM lens damages it? It's quite an assertion - do you have any actual evidence for this...
Posted by ChrisA on 15/04/2012 - 00:43
Fast focus for baby shots
But it is a not unreasonable assumption that this new technology would have had speed as one of its objectives. The fact that the 60-250 is apparently very slow must be considered a disappointment. G
Posted by George Lazarette on 15/04/2012 - 21:20
Fast focus for baby shots
Going back to the original question, I have found that the 18-135 is very quick to focus and I like it! I have not tried using it for baby portraits but I'm sure it would do the job fine. Of course it is also a WR lens with water resistant build and super protect coating on the front element. That m...
Posted by doingthebobs on 15/04/2012 - 22:15
Fast focus for baby shots
I use my wife's Nex5 , sometimes the K-5. Nex5 is much cheaper than a 31Ltd. Focus is a revelation. Light enough to hold in one hand and shoot away while propping the baby up with the free hand. K-5 is a bit unwieldy.
Posted by dougf8 on 15/04/2012 - 22:22
Fast focus for baby shots
If you've got £500 to spend specifically on portraiture get yourself a twin head studio kit. Something like this http://www.lencarta.com/lighting-store/flash-heads/flash-heads-1/twin-head-mains-powered-starter-kit-502 Add a second softbox, wireless triggers and a background. :wink: Then you ca...
Posted by Blythman on 15/04/2012 - 22:34
Fast focus for baby shots
No, because of SDM failures. What I think happens though is that the SDM motors get over torqued if the lens is quick shifted. Can you be absolutely clear here, please? Are you saying that quick-shifting an SDM lens damages it? It's quite an assertion - do you have any actual evidence for this...
Posted by JAK on 15/04/2012 - 23:18
Fast focus for baby shots
Actually I've been using my 35 f2.4 lately with a my 360 flash+lightspheres and WOW! I can stop down a bit more with the extra light but still stunning. Though about putting her in a light tent but have to wait till the wife is out as she would kill me :-) We've got some awful low energy light...
Posted by whelmed on 19/04/2012 - 09:59
Fast focus for baby shots
Just thought I'd chuck in another suggestion - I have had great success chasing my 18 month old around with a Tamron 17-50 f2.8. It's an excellent lens all round. Very sharp images, quick and accurate focusing, useful zoom range, compact and it's even (relatively) cheap. I agree with you on using...
Posted by Mandrake on 20/04/2012 - 11:58
Fast focus for baby shots
Leaving aside the SDM/HSM debate, for screw drive lenses, I've found that lenses with a short focus throw are quickest to focus on my K-5. From the lenses I've got around that range, my Pentax 18-250 is very quick to focus and has surprisingly good IQ. I've also got a Tamron 28-105 that is prett...
Posted by sorted78 on 28/04/2012 - 08:48
Fast focus for baby shots
The DA 35mm f2.4 is indeed very fast and sharp too! Perfect or baby snaps. The DA 18-135 mm WR is much maligned, but it's great all purpose lens and it is very sharp where you in the regions you require it to be sharp. It focusses quickly and silently too!
Posted by Pentaxonian on 29/04/2012 - 15:47
Pentax/Ricoh putting prices up
I'm just pleased I jumped on a new 15mm Limited from Flash Camera last week for £399. Already gone up to £459 there I was going to buy one from Ian just before I went to Spain for a fortnight but worried about delivery while I was away so left it until I came back. Of course sods law dictates a p...
Posted by Mike-P on 14/04/2012 - 19:31
Pentax/Ricoh putting prices up
I am sure that in time the prices will fall again, as they did last time. That's what I have been thinking all through this (and other threads). Haven't prices only gone back to what they were when Pentax did a massive price hike a year or so back? Prices have dropped quite a bit since then (esp...
Posted by Mike-P on 14/04/2012 - 20:33
