Search results for 'back focus' - page 1108
DA* 50-135 SDM autofocus problems.
I was in a situation similar to the opening post – I’d bought a second hand DA* 50-135 that was about six days out of its manu’ warranty and the autofocus died completely. I expressed my disappointment to Pentax Cust Servs and they kindly paid for the repair. The lens was great for about six month...
Posted by deck_chair_dave on 12/05/2020 - 21:40
DA* 50-135 SDM autofocus problems.
Holy thread resurrection Batman! Sods law dictates items pack up just outside warranty... Both of my zooms developed problems.... the prime has not given up yet. Seems the DA 17-70 lens has disappeared into distant memory. I was looking to buy one when my 16-50 was being repaired for the f...
Posted by ilovesaabs on 13/05/2020 - 20:44
DA* 50-135 SDM autofocus problems.
Keeping a resurrected thread going.... I bought a 50-135 with a disclosed lazy SDM from a fellow member here and it soldiered on for many years before finally refusing to wake up at all. Prior to that, like many others experienced it would take a minute or two to gradually come to life, then give...
Posted by Crossed-up on 06/06/2020 - 22:53
Motorsport Lenses For Pentax??? Any Suggestions?
My motorsport shots are I have of late shot with a recently acquired DA*50-135, the last meeting was wet so came into its own, before that I mostly used the Sigma 70-200 OS with occasional use of the DA*300. This I found a little restrictive and only use, if I'm lucky enough to have a second body, ...
Posted by SteveEveritt on 29/10/2013 - 18:32
Motorsport Lenses For Pentax??? Any Suggestions?
Could you tell me if Tamron 70-200 f2.8 is either fast to use for sports events as is less expensive then Sigma? As it has a constant max aperture of f2.8 across the zoom range, there is no other lens that I know of that has a wider/faster aperture. In that respect it's fine. The unknowns are a: is ...
Posted by Mannesty on 01/11/2013 - 20:25
Motorsport Lenses For Pentax??? Any Suggestions?
I've got the Tamron and don't find it a problem, all the shots in my gallery on here have been taken with it. The choice between the Tamron and the Sigma really based on cost for me - I was being offered a very good deal! The only thing that lets it down is the slightly slower autofocus (altho...
Posted by MatthewEl on 02/11/2013 - 17:58
TBA: HD PENTAX-DA 20-40mm F2.8-4 ED Limited DC WR
It's a little odd-looking but I like the Takumar-styled zoom ring. Assuming performance is good wide open, this could be a useful little lens. Of course, having a ltd zoom that at 20mm is f/2.8 further undermines the 21mm ltd that's only f/3.2. I can see the possibility of my 21mm being replace...
Posted by Jonathan-Mac on 01/11/2013 - 07:41
TBA: HD PENTAX-DA 20-40mm F2.8-4 ED Limited DC WR
Shame it's not 2.8 all the way through Shame it's not f1.8 all the way for that matter, a la Sigma 18-35. Still, it's nice to have a small classic looking zoom. Should be lightning fast auto focus given the short distance from min to infinity on the focusing scale.
Posted by Pentaxophile on 01/11/2013 - 08:23
TBA: HD PENTAX-DA 20-40mm F2.8-4 ED Limited DC WR
Thinking about it, this actually might be the lens I've wanting from Pentax. 2.8 is actually a big improvement on the 3.2 of the 21ltd. 20mm is great for going 'walkabout' plus you get a little extra length for flexibility. 1.8 would have been great but you could argue that you would have been stopp...
Posted by Dodge69 on 01/11/2013 - 09:31
TBA: HD PENTAX-DA 20-40mm F2.8-4 ED Limited DC WR
1.8 would have been great but you could argue that you would have been stopping down a little anyway a lot of the time just to improve your focus hit rate. I'd argue that if you wanted the Sigma f1.8, you'd buy it specifically because want to be using the f1.8! i. this lens is going to be a lot ...
Posted by Pentaxophile on 01/11/2013 - 09:48
TBA: HD PENTAX-DA 20-40mm F2.8-4 ED Limited DC WR
Shame it's not 2.8 all the way through Shame it's not f1.8 all the way for that matter, a la Sigma 18-35. Still, it's nice to have a small classic looking zoom. Should be lightning fast auto focus given the short distance from min to infinity on the focusing scale. Actually yes, even better
Posted by Smeggypants on 07/11/2013 - 00:11
TBA: HD PENTAX-DA 20-40mm F2.8-4 ED Limited DC WR
Well if you wait until it's actually out Algi, I may have on for you!::wink: Just trying to decide what I want stuck at the back of it..
Posted by jules on 16/11/2013 - 10:01
TBA: HD PENTAX-DA 20-40mm F2.8-4 ED Limited DC WR
I don't see the point in a review comparing the lenses. Each will appeal to people with different priorities. I don't drive. Size and weight matter a lot to me. From the moment I leave home I am carrying my equipment on my back sometimes for many miles over difficult terrain. If I could only take on...
Posted by RichardJS on 01/12/2013 - 22:44
TBA: HD PENTAX-DA 20-40mm F2.8-4 ED Limited DC WR
Good on you Jules. I have a love of the Lake District myself particularly the western side served by the Barrow in Furnace to Carlisle railway. I used to back pack across the fells from one valley to the next returning home from a different place from where I started. I found that more rewarding tha...
Posted by RichardJS on 02/12/2013 - 21:36
TBA: HD PENTAX-DA 20-40mm F2.8-4 ED Limited DC WR
Good on you Jules. I have a love of the Lake District myself particularly the western side served by the Barrow in Furnace to Carlisle railway. I used to back pack across the fells from one valley to the next returning home from a different place from where I started. I found that more rewarding tha...
Posted by jules on 04/12/2013 - 21:35
New Tamron but probably not for us???
[quote:3496ace15f="johnriley"]It's still fairly early days, things do take time to build up. Well the K mount has been in use since 1975 (12 years longer than Canon's EF.) :twisted: @ JR, how can you blindly defend the indefensible? Your brand bias is showing. "Early days"? in the words of Jim Royle...
Posted by jules on 18/11/2013 - 10:59
New Tamron but probably not for us???
Well Peter, if I've misjudged your comment I am very sorry. The trouble is just recently there has been far too much of posters attacking others instead of attacking their arguments. This has the effect of discouraging the milder people from participating at all and the place is less rich as a re...
Posted by johnriley on 18/11/2013 - 14:07
Pentax M 75-150mm Zoom
Yes, its a good one all right. I too have been impressed with the image quality. Its not a 'fast' zoom, but then having a constant f4.0 over the whole range is a plus, as is the superb built quality. The push / pull zoom movement can sometimes become confused and mixed up with the turning focus ...
Posted by McGregNi on 04/11/2013 - 19:00
Pentax M 75-150mm Zoom
The M 75-150's were well regarded when first released. I got one to replace a stolen Tamron 70-150. Still got the Pentax one but it isn't so convenient with digital having to set the focal length (same applies to any manual focus zoom of course) so it doesn't get much use these days having a DA55-30...
Posted by JAK on 05/11/2013 - 00:15
Boot sale bargain
On Saturday I succumbed to LBA again, after spotting a Tamron SP 90mm f/2.5 at the local boot sale. At first I managed to resist, but after walking off I remembered there was a macro Tamron that matched those details that actually had a rather good reputation, so went back for a second look. The bo...
Posted by petrochemist on 04/11/2013 - 22:02
