Search results for 'back focus' - page 1169
DA* 50-135 & 16-50
Can anybody offer any explanationfor this? Visiting the Yorkshire sculpture park today and both of these lenses refused to focus reliably. Nothing at all with the 16-50. The 50-135 worked if I prefocussed manually. I had a HD 15 limited with me and this worked fine. So sitting down tonight and...
Posted by YORKSBOY on 27/12/2015 - 19:22
DA* 50-135 & 16-50
If you haven't used the lenses for a long period of time they can have focus issues. Not sure why but it's to do with the SDM motors. These lenses need to be used regularly to avoid issues. Regards David
Posted by davidstorm on 27/12/2015 - 19:42
DA* 50-135 & 16-50
As David has mentioned. If you don't use the lenses regularly they just stop to focus and need a time(and "exercise" to wake up. Because they are professional lenses manufacturers are expecting that they will be used every day and if they are not used on a daily basis they will just fell in sleep....
Posted by Marselus on 27/12/2015 - 21:52
DA* 50-135 & 16-50
Than thats the problem with your lens. i know you are busy with your house renovation but try to put the lens on the camera and turn it on everyday and just focus on something, dont need to make any photo just exercise the focus and you should be fine. If it wont focus the just refocus manually fr...
Posted by Marselus on 28/12/2015 - 20:07
DA* 50-135 & 16-50
I had a similar problem with my 50-135 about a year ago. I was taking part in a photoshoot at a steam railway event. I switched the lens from my K3 to the K5 II and it worked fine. But back on the K3 it failed to operate! Other lenses worked perfectly on the K3 so I was baffled! I later cleaned the...
Posted by PeteL on 03/01/2016 - 15:31
DA* 50-135 & 16-50
I have had similar problems with my 50-135 and it appeared dead on my K5II and then I tried fitting it on my MZ 7 and the screw drive made it jump back into life again, I then put it back on the K5II and it worked perfectly, so now if I find it not working, I slip it on the film body to bring it bac...
Posted by ajp8422 on 04/01/2016 - 15:45
Voigtlander 90 on a hike
The K5iis doesn't have a manual-lens setting for the Voigtlander 90 I discovered when I got out there. The settings available went from 85 to 100. So what should I use, 85 or 100? I chose to use 85 for most of the hike but shot a few at 100. Back at home in Lightroom it seems the 85 was the better...
Posted by LawrenceKH on 31/12/2015 - 02:16
Voigtlander 90 on a hike
Had one of the Voigtlander 90s for a while a couple of years back, I would not rely on the focus beep, you're better off dialling in via the OVF or Liveview. Still @f/3.5 it is not the most difficult to focus with :) If I did have an issue with it was to do with how intermittant the metering was us...
Posted by robbiec on 01/01/2016 - 03:44
Samyang 35 & Voigtlander 90, on hike 1-1-16
https://lawrencehelm.smugmug.com/RiverPhotography/Jan-2016/ I started the hike with the Samyang 35mm. I liked the 85mm Samyang, but I may like the 35mm better, at least in terms if IQ -- definitely not in terms of weight. When I switched over to the Voigtlander 90 and put the Samyang in my came...
Posted by LawrenceKH on 02/01/2016 - 04:19
Guide to the naming of Pentax lenses
Try this for some information: http://www.mosphotos.com/PentaxLensesExplained.html All Pentax lenses can be used (older screw mount lenses will need an adapter), although older lenses will not have auto focus.
Posted by percy on 02/01/2016 - 15:14
Guide to the naming of Pentax lenses
As others have said all full size Pentax bayonet mount lenses can be used with any Pentax DSLR. (Pentax has also made miniature 110 & Q series lenses which can't). Third party K mount lenses are also fine. There are limitations with older lenses - the camera can only control aperture on PKA & la...
Posted by petrochemist on 03/01/2016 - 14:01
DA* 16-50 SDM failure
Sadly I have become a member of the club :( It's been suffering for a few weeks and I've pondering whether to send it for repair. However after reading article about the lens not liking being left idle I decided to mount it and see if I could "wake it up". I gave the focus ring some good fast twis...
Posted by SteveEveritt on 03/01/2016 - 13:30
sigma 600 f8 reflex
I had one a while back, great way to get good length on a budget. In good light it was fine. They have a weird doughnut bokeh but I didn't mind that. These were taken using the brilliant Pentax exclusive Catch in Focus. https://flickr.com/photos/45965924@N03/sets/72157627370159164 Although I c...
Posted by SteveEveritt on 03/01/2016 - 19:39
A few pictures from my SMC 85mm f1.8 lens
Hi, I received the SMC Takumar 85mm f1.8 lens a couple of days ago. here are some imaged taken in my back yard with this lens. I will take some portraits with this lens, But due to the lack of some beautiful, glamorous models, I have to wait until my grandchildren visit me It would be ni...
Posted by Horst on 06/01/2016 - 06:09
What's your favourite lens and why?
I don't have a single favourite lens as it depends on what I'm doin. However, for what it's worth I'd pick three - two of which are previously mentioned above. 1) Pentax DA 18-135 as put forward by John. I agree with everything he has to say about it - a much underrated lens (IMHO) 2) Tamro...
Posted by swarf on 11/01/2016 - 14:59
What's your favourite lens and why?
It would have to be my FA*300 F4.5. It's light and small for a telephoto. Sharp from wide open. Fast af especially with the newer pentax bodies. Never noticed any CA or flare. Owned and used it regularly for over 20 years since new, So reliability must be at the top even if it fails tomorrow...
Posted by walt on 11/01/2016 - 17:04
What's your favourite lens and why?
I, like a few others, haven't got a single favourite lens, so my top 3 are: 1) The SIGMA 18-35mm F1.8 HSM Art series lens - This lens is probably the sharpest zoom lens you can buy for any APS-C camera system. The build quality and smoothness of the Zoom & Focus rings is great. 2) Like John I ...
Posted by Spider-Man on 11/01/2016 - 20:58
What's your favourite lens and why?
I think my favourite lenses go back to film days. Given they're primes I couldn't state just one. For general use the 40mm f2.8 pancake that came as standard with the ME had just the right field of view of most shots. I also had a 28mm Vivitar which was pin sharp but unfortunately fell to pieces. I...
Posted by JAK on 16/01/2016 - 21:53
What's your favourite lens and why?
McGregNi wrote: es , that's the one, a little gem! Most of my best photos have been taken with it over the the last couple of years. I fully agree. I always come back to this excellent lens. When I go out and wonder what to take with me, I invariably end up with this lens. Besides being ver...
Posted by Horst on 01/02/2016 - 08:44
What's your favourite lens and why?
I like this thread - I have not been posting much recently but could not resist this one :D:D I love manual primes pretty much for the reasons stated by David and because I like to use photography as an opposite to the world of work in which everything must be done yesterday so a slow down is the...
Posted by Stuey on 01/02/2016 - 21:24
