Search results for 'back focus' - page 1318
K10D failure?!
Contact pentax. I have but they seem to ignore any negative emails! Ive also had the black banding but i put it down to me getting it wrong. The thread i started about the problems ive had... As George says (and I know from bitter personal experience... as I write firmware for telecoms device...
Posted by George Lazarette on 25/07/2007 - 08:45
K10D failure?!
Instead of writing emails, take the camera back to the place you got it and demand a repair or replacement. Just whingeing on the Internet isn't going to make your camera better. G Who the hell is whingeing!? Im simply trying to make everyone aware that the K10 has issues. And the last camera i se...
Posted by bettyswolloks on 27/07/2007 - 00:44
I'm in love....
Look on the bright side.. The camera: Doesn't talk back Doesn't have headaches Doesn't go through your pockets when you are sleeping Keep your affair a secret and appreciate... :roll: Regards Skronk
Posted by skronk on 24/07/2007 - 22:41
number of photos on a 2 gig card
Ok, sorry if this has been addressed already but I'm confused. I was shooting 10MB jpegs on the k10d with a 2 gig card in the camera. The number of available pics started at 414. I noticed that I was shooting a few pics but the number only dropped by one or two. Long story short, the first card took...
Posted by ChrisA on 25/07/2007 - 09:06
number of photos on a 2 gig card
I get about 180 PEF RAW or 120 DNG RAW on the same card. You could have a dodgy card, check the space available, full space and bad sectors in a card reader. I have fixed a SanDisk card with 50% bad sectors before, you need to reformat it via command prompt to FAT16 then back to FAT32. That may h...
Posted by Tyr on 27/07/2007 - 10:11
Sigma 50mm F2.8 Macro
Proper macro lenses don't have a "macro mode", which is more the stuff of zoom lenses. What they do is to have an extended focusing range that, without interruption, goes down to 1:1 magnification. That is, a 1cm long object is 1cm long on the film/CCD. Obviously when the enlarged image is...
Posted by johnriley on 26/07/2007 - 09:56
Sigma 50mm F2.8 Macro
I got my Sigma 50mm Macro second-hand on ebay for under £100. I only use manual focus for macro work. It's quite tricky to use AF because you are so close to your subject it's harder for the AF system to find the right place to focus on. If you're trying to get insects you usually want to focus on t...
Posted by chirpy on 26/07/2007 - 11:18
Telephoto zooms
I've got an order in for the Samsung from Jacobs, hopefully will be at home when I get back from work. Amazing price, our local Jacobs store are selling this for £99.99 stating that it is reduced from £199.99. They won't price-match their own internet site price though.
Posted by spaceraider on 27/07/2007 - 16:14
samsung lens
Samsung d-xenon sharp all the way to 200mm and no softness at all. paul actually its a bit soft at the edges at 50mm. and the auto focus is bloody slow compared to my FA50mm, (on my DS anyway) but i agree its a great value lens at £58 shipped. not worth the RRP of £200 or so though! i'm ...
Posted by thomastherhymer on 31/07/2007 - 10:39
samsung lens
Samsung d-xenon sharp all the way to 200mm and no softness at all. paul actually its a bit soft at the edges at 50mm. and the auto focus is bloody slow compared to my FA50mm, (on my DS anyway) but i agree its a great value lens at £58 shipped. not worth the RRP of £200 or so though! i'm ...
Posted by George Lazarette on 31/07/2007 - 10:44
samsung lens
Throwing something else into the mix here - hows does the the Tameron AF 70-300mm F/4-5.6 Di LD macro measure up to the samsung/pentax 50-200? apart from the longer reach (and pretty fast @f/4 at it shortest) it looks a contender as sourced at £99 Anyone had experience with this lens? btw I...
Posted by Guilhem on 31/07/2007 - 14:13
manual focus problems on k10d
Ok, three different lenses, playing with the diopter till the view through the viewfinder really does look as sharp as it can. After a long day what I now see is that I need to focus about an inch in front of the subject for the subject to be perfectly in focus. (this at a distance to subject of abo...
Posted by davidxgreen on 29/07/2007 - 19:56
manual focus problems on k10d
point your camera at a white/bright solid colored wall. (focus at this point is irrevelent) set your diopter so that the af markers [ ] in the center of the viewfinder look razer sharp. now it's set up right, leave it alone.
Posted by Don on 29/07/2007 - 20:07
manual focus problems on k10d
Perhaps it is not the diopter's fault?? I don't know if it is a common issue but I seem to have heard similar issues. My K10D definitely focuses in the wrong spot. Take a newspaper, book or other evenly patterned object in front of the camera at a 45 degree angle. Get a real small DOF and focu...
Posted by amoringello on 29/07/2007 - 20:34
manual focus problems on k10d
It's quite common to find people who have difficulty with manual focus. Experiments with MF cameras showed that when a given subject was focused on by different, or even the same, people, the amount of error was surprisingly large. This is why MF cameras have focusing aids such as microprism spot...
Posted by johnriley on 29/07/2007 - 21:08
manual focus problems on k10d
I downloaded an excellent focusing tool from a N-k-n site somewhere (happy to email it to anyone who wants it), tested the focus (same 45 degree angle sort of trick. It's exactly as amoringello says, the line just past the one I'm focusing on (and a bit of the next line) are crystal clear. It's ...
Posted by davidxgreen on 29/07/2007 - 21:35
manual focus problems on k10d
Testing autofocus using the groovy little chart from http://focustestchart.com shows the same results, what's in best focus is consistently a few millimetres to a couple centimetres behind what I'm focusing on. Please tell me there's some way to fix this that I've overlooked...(outside of posting th...
Posted by davidxgreen on 30/07/2007 - 10:44
manual focus problems on k10d
I don't know how accurate your testing is, I don't mean that negatively, I just don't know what sort of error we are talking about in relation to any experimental error. Focusing screens will be in correct register within certain limits, like every manufactured item there will be some leeway, but...
Posted by johnriley on 30/07/2007 - 10:58
manual focus problems on k10d
I am bemused. You claim you can detect an error of one inch in six yards. That's approximately 0.5%. First, I'm amazed you can measure such a small focussing error so accurately, and second, at that distance the DOF will ensure that there is no problem. Or are you the fortunate possessor of ...
Posted by George Lazarette on 30/07/2007 - 11:36
manual focus problems on k10d
Photos are at: http://www.flickr.com/photos/10737481@N06 The focusing chart shots were done with a 16-45mm on autofocus and the leaf shot was manual with a 90mm lens at f2.5. I manually went out of focus each time, then let the autofocus zero in on the centre bit. They were taken from about 1 met...
Posted by davidxgreen on 30/07/2007 - 12:31
