Search results for 'back focus' - page 1141
18-135 ed wr
Simon Quite a few of my recent images posted here were taken with the 55-300, including quite a few landscapes. I think that it represents GREAT value for money. However, when I brought it I immediately put a protective filter on the front of it and the results, while still good, were quite...
Posted by swarf on 15/08/2014 - 09:13
18-135 ed wr
AFAIK, the beep is not lens-specific, but I keep it switched on all 3 bodies because it helps with focus confirmation - especially at wider apertures - and, as long as the single point focus option is selected, I just have to make sure that is where I want it to point, wait for the beep and then pus...
Posted by jeallen01 on 15/08/2014 - 15:48
18-135 ed wr
The first thing that gets sorted on any new camera (or computer, washing machine etc) is to turn off the beep. On the camera you can use the hexagon in the view finder to confirm focus, or set the camera to not take a photo unless focus has been found. I use the 18-135 as a walkabout, and in lo...
Posted by Gwyn on 15/08/2014 - 19:39
18-135 ed wr
Thanks for all the replies...very helpful. I got the lens today and my initial thoughs are that it feels much more of a quality product than my other lenses. I havent took it out yet (tomorrow), though i did have a bit of a play in the house. I couldnt believe how quiet the focussing is....to the ...
Posted by scarr1 on 15/08/2014 - 20:55
18-135 ed wr
Hi, I bought/paid for a k3 kit with the 18-135mm lens. Long story short, allegedly I got the lens from a k-50 kit split without the lens hood. Now the store wants the lens back after I emailed them about the missing hood, saying that the kit lens is different from the separately sold lens or the ...
Posted by GM on 19/08/2014 - 17:02
FA77 ltd repair advice
My beloved 77 has, for no apparent reason, gone all loose and won't focus. I assume something has rattled loose inside. The front element has about 5mm free movement in and out. Did a search here for lens repairers with no joy. I don't want this gem sent out to just anyone. I'm assuming it's best ...
Posted by Darkmunk on 15/08/2014 - 09:30
FA77 ltd repair advice
JPSS gets my vote... I broke my macro in half - repair cost £90:shock::shock: quality of each repair (2 x SDM and 1 broken FA50 mount) has been astounding, lens has come back better each time.
Posted by ilovesaabs on 15/08/2014 - 10:57
FA77 ltd repair advice
Just thinking out load... I'm pretty handy and went to engineering college; how difficult are these things to repair? The FAs are fairly simple aren't they? If I drop out the front element will I have to re-centre it etc. or will it stay in it's housing and go back in the way it came out? Can any...
Posted by Darkmunk on 15/08/2014 - 15:22
FA77 ltd repair advice
It's probable the front set of elements is held in by a screw or three. The FA80-320 and FA28-70 worked in a similar way. http://www.photon.me.uk/pu/pentax_fa80_320/index.html Looking at the element structure there should be a group of three elements in that front part. Hopefully there will be...
Posted by MattMatic on 15/08/2014 - 22:24
A.F. Fine Tuning.
HELP!!!. I've just been checking for fine focus on my K5iis and my K3. Most of my lenes including an old Takumar 135 K mount are all within 1-2 increments. Hardly worth bothering about. However one of my favorite lenses, my Sigma 24-60 f2.8 EX DG is way off. It is focusing close to me (front focusin...
Posted by vic cross on 17/08/2014 - 14:01
A.F. Fine Tuning.
I've just thought of something else. Even on Live View when it is sharp when I take the picture it is out of focus???? CHEERS Vic.
Posted by vic cross on 17/08/2014 - 14:19
A.F. Fine Tuning.
Live view is through the sensor so assuming the focus doesn't change from viewing live to pressing the shutter button it should be in focus. Live view is WYSIWYG :D
Posted by Smeggypants on 17/08/2014 - 19:22
A.F. Fine Tuning.
Algi. When using it for "wide" shots with f11 or f16 focused 1/3rd of the way in then obviously all is OK. All is sharp with a big depth of field. It's just when I try anything closer with f2.8 Smeggy. Sorry, I made a mistake there. I meant when I use manual focus through the viewfinder not live v...
Posted by vic cross on 18/08/2014 - 07:21
A.F. Fine Tuning.
You need to focus on something vertical with a sloping ruler at the side..... something like the DIY GhettoCal :lol: Simplified paper only version..... OR an easier way... http://ricehigh.blogspot.com/2012/01/focus-adjust-k-5-and-pentax-af-lenses.html --
Posted by Algernon on 18/08/2014 - 08:55
A.F. Fine Tuning.
To see if this can help anyone to help me. This is the set up and method I used to check the focus on my 24-60 f2.8 Sigma lens. It is focusing close to me (Front focusing)?. 2.jpg[/img] 1) The set up in my light tent showing the cards with one turned a little to show...
Posted by vic cross on 19/08/2014 - 09:42
A.F. Fine Tuning.
The problem might be (a) the lens itself needs a workshop visit for calibration, and/or (b) because it's a Sigma lens, by which I mean that since Sigma avoid licensing costs by reverse engineering, etc, the lens id might be shared with another of your lenses. If (b), when the Sigma is mounted the ca...
Posted by JohnX on 19/08/2014 - 09:55
A.F. Fine Tuning.
John. On LV and Manual focus it is good. Smeggy mentioned this earlier but I had done manual focus through the view finder and it was out. All other fine focusing settings are at zero. I did this to make sure there was no possibility of any errors. CHEER...
Posted by vic cross on 19/08/2014 - 10:19
A.F. Fine Tuning.
Does it ever focus correctly at infinity ?
Posted by kh1234567890 on 19/08/2014 - 10:46
A.F. Fine Tuning.
Up date. Sigma UK said my lens was approx. 10yrs old and would need a complete new circuitry fitted. £89.00'ish. So they also said I could P/X it for a new lens so I decided to have one of their "NEW" 17-70 f2.8-f4 DC lenses. (Wider zoom and only one stop more at 70mm). Serial number 013. How new is...
Posted by vic cross on 28/08/2014 - 15:41
Lens flare
Is it possible for a lens to have a fault which makes it flare more than it should? I've just had my beloved Samsung 12-24 replaced for a brand-new Pentax version, but it doesn't seem to have any flare resistance at all and it seems to hunt for focus in silhouette situations.
Posted by Darkmunk on 18/08/2014 - 11:31
