Search results for 'back focus' - page 2113
FLUCARD_for_PENTAX connection issues
OK that sounds useful thanks very much - as soon as I get the flucard back I'll give this a try. Thank you everyone for your responses, I'll post another response when I've tried these suggestions. Rick
Posted by Rick6833 on 20/05/2014 - 12:12
150-500 Focusing Problems/Sigma Service
Hey all, I took a punt on a cheap 150-500, it was advertised as for parts not working. Cosmetically its spot on, the focus problem is a little irritating to say the least, it will focus perfectly at all focal lengths in the living room and back yard, but anything further away it just chucks a spaz a...
Posted by bettyswolloks on 25/05/2014 - 12:14
150-500 Focusing Problems/Sigma Service
Yeah I was looking at that, filled out a returns for, just waiting to hear back from Alan Marlow before I send it off.
Posted by bettyswolloks on 25/05/2014 - 19:00
150-500 Focusing Problems/Sigma Service
The £131.99 tariff also includes £25ish rmsd and vat so is especially good value for the work involved, I was well impressed with my sigma when it came back from them...
Posted by cabstar on 25/05/2014 - 20:08
150-500 Focusing Problems/Sigma Service
Sent my 100-300 F4 back last year for a check-up - nothing found wrong and all they charged me was the basic Tariff 1 £37.99 for a recalibrate job, and then return by RMSD. That included a couple of chats with the technician before he did the cal work. So no beefs there! OTOH, DHL "lost" t...
Posted by jeallen01 on 25/05/2014 - 20:45
150-500 Focusing Problems/Sigma Service
Thanx everyone. Alan has just said the best place for it is back to sigma, so its off for a good fettlin'
Posted by bettyswolloks on 25/05/2014 - 21:37
Artifacts
Massive thanks to Matt for having a forensically hard look at the original DNGs of these... really good of you and much appreciated... So, how can I put this nicely? Oh... I can't... turns out I'm a bit of an idiot (my words, Matt was much more polite than that!). So... actually these files D...
Posted by thingsthatihaveseen on 30/05/2014 - 17:33
Pentax LX & AF280T - flash not firing every time
Hi I have an LX and AF280T, which I use on the camera hot shoe. About 50% of the time the flash does not fire when the shutter is pressed; Result - more wasted E6! The camera is switching automatically to X sync when the flash is charged. The led in the finder flashes on a good exposure and this ...
Posted by argibbo on 28/05/2014 - 16:04
Pentax X-5 problem
A pal of mine bought an X-5 bridge camera on my recommendation about a year ago. He's now on the "holiday of a lifetime" travelling around America with his wife. Got this email from him today: "Camera seized up day before visit to Grand Canyon! The zoom feature has stopped and camera won't focus .....
Posted by Aero on 31/05/2014 - 11:54
F 50mm macro clamp question
Hey folks. Picked up a reasonable FA 50mm Macro but the focus clamp seems very loose and doesn't affect anything. AF is fine and the price was less than £100. Is it worth bothering getting it repaired or should I just return it. What's the reduction in value? Roughly. Any views gratefu...
Posted by dougf8 on 07/06/2014 - 13:18
F 50mm macro clamp question
It was the same on my 100mm, as far as I was aware it's used in manual focus to tighten up the focus ring slightly to either keep the focus point locked or the make the focus ring tighter. I was told it comes loose if you set the switch to the on position whilst using autofocus and also damaging th...
Posted by MattyH on 07/06/2014 - 20:04
F 50mm macro clamp question
Thanks Matty, No difference, it feels loose and doesn't seem to tighten as you close the clamp. Also when closed the manual focus seems as easy to turn with no discernible change. I'm guessing the thing is broken. However it works fine as a 1:1 AF Macro so I'm not unhappy. Thanks
Posted by dougf8 on 07/06/2014 - 20:36
F 50mm macro clamp question
...so I am guessing it's just down to a weak part. Just bought a Pentax smc DFA 50mm f/2.8 Macro Lens via Amazon. The Clamp switch disables AF when set to ON (as expected) but there is virtually no difference in focus ring friction between ON and OFF. The focus ring friction feels about right ...
Posted by SteveDee on 11/03/2015 - 10:23
F 50mm macro clamp question
The clamp is purely there to stop any focus shift in manual focussing mode, especially in circumstances where gravity might play a part, i.e. if using a copy stand so the lens is pointing straight down. Set to manual focus, adjust focus, switch clamp 'on' to hold focus. That's it. DON'T try ...
Posted by JohnX on 11/03/2015 - 22:23
MattyH
He mentioned in a post a while back that he'd got very near the edge ...
Posted by McGregNi on 16/06/2014 - 17:29
Stuck Tubes - Help !
Relax, nothing off-topic or personal here! Its about stuck extension tubes :o . Following some of the advice I got on the thread asking about 'Pixels or Glass', wanting to take closer focused images, I got a set of 'Neewel' tubes from Amazon. First time with anything like this, so it was bound to g...
Posted by McGregNi on 19/06/2014 - 21:09
Stuck Tubes - Help !
GOT IT !! :D:lol: Thank you all very much .... it was that little 'chrome knob' thing, that I didn't think was a knob at all - it is in fact a screw that come out - I was just adjusting it in and out to no effect, but as Andrew just said, it lifts up and pulls the pin up with it, therby releasing...
Posted by McGregNi on 20/06/2014 - 02:01
Stuck Tubes - Help !
GOT IT !! :D:lol: Thank you all very much .... it was that little 'chrome knob' thing, that I didn't think was a knob at all - it is in fact a screw that come out - I was just adjusting it in and out to no effect, but as Andrew just said, it lifts up and pulls the pin up with it, therby releasing...
Posted by petrochemist on 20/06/2014 - 16:31
Stuck Tubes - Help !
With the tubes and lens in my hand looking through, moving the aperture ring does not close the aperture in the lens - it remains fully open even at f22. Mystery? I've just checked another set of Jessop tubes with my own M75-150 and that doesn't happen. The lens aperture behaves as you would expec...
Posted by andrewk on 29/06/2014 - 17:35
Stuck Tubes - Help !
But surely not all three in exactly the same way Andrew Well, you have a point. The thing I really cannot wrap my head around is that I have used those tubes to take photos with a M75-150 and with a Pentax M 50mm f/1.7 - and I'm pretty sure they worked fine. David is quite correct, you cannot u...
Posted by andrewk on 29/06/2014 - 19:13
