Search results for 'back focus' - page 1233
Sigma 600mm Mirror Lens
Good results all the same though, does Topaz provide an adjustable slider or method to control the sharpening? I would like to think so, you could lower the amount perhaps to prevent the "artifacts" ?? In Rawtherapee it does allow some control BTW. Yes Topaz has so many different settings both for s...
Posted by WiltshireBorn on 28/08/2026 - 15:31
Sigma 600mm Mirror Lens
They look good for a first attempt and practice will improve things too. Would catch-in-focus work in this situation. It may help to improve the success rate. Out of interest, does Topaz remove the doughnut highlights that you would normally get with a cat lens? They dont seem to be present here.
Posted by smc on 28/08/2026 - 15:53
Sigma 600mm Mirror Lens
Sorry but the AI artifacts are rather too visible for my tastes. Yes I know they are pretty bad but if you saw the original out of focus images, you probably would have binned them :) But worth persevering with!
Posted by MikeInDevon on 28/08/2026 - 22:01
Adjusting the HD DA* 16-50
Does anyone know of any good resources for adjusting the focus of the 16-50 on a K-3iii? Mine has terrible front focus and it's driving me nuts as I have had to bin too many photos. If I use live view and manually adjust the focus it can be as sharp as a sharp thing, but the AF is often out. The ...
Posted by womble on 25/10/2026 - 10:17
Adjusting the HD DA* 16-50
Focus adjustment is all down to the body I believe. Sometimes a lens can have an issue with forked contacts that transmit focal length FL information and this causes problems with focusing. Symptoms include racking AF without correctly locking. Check to see the FL that the lens reads out correspo...
Posted by HarisF1 on 25/10/2026 - 11:44
Adjusting the HD DA* 16-50
It was tips on using the fine focus I was after. I rambled a bit in my original post, sorry. Is there a guide around for the best way to adjust fine focus when using a zoom lens? K.
Posted by womble on 25/10/2026 - 15:17
Adjusting the HD DA* 16-50
I usually adjust for infinity focus at the long end of the zoom, on the assumption that there is more latitude at shorter focal lengths with greater depth of field.
Posted by smc on 25/10/2026 - 15:56
Adjusting the HD DA* 16-50
Hahah Here's what I do. Focus on a well defined object at a reasonably far distance. Something like a tree branch/leaves at 20 or so metres with the sky behind it. Use a tripod and centre focus spot on both live view and viewfinder modes. Line up the shot using live view, then AF and sho...
Posted by HarisF1 on 25/10/2026 - 21:03
SLR digital camera
Pentcontax, Canon thumb wheel - urghurgh! Makes me go all shivery at the thought! If you look carefully, the "wheel" is appears to be the focus selector (around the OK button), to choose between auto, spot, and selected. The aperture wheel is on the top right corner of the back - in the sam...
Posted by MattMatic on 28/03/2003 - 09:51
SLR digital camera
I've switched pentax->Nikon when pentax a long time ago, I've always been fond of pentax glass, but didn't like the (AF)bodies at that time.. the MZ-S seems to be an improvement again, would the *istD be similar? I own a Nikon D100 currently, but this *istD would certainly make me consider switc...
Posted by marcof on 11/06/2003 - 12:34
645N vs. EOS 1DS dilemma / Digital back for 645N
I currently have a 35mm format digital SLR (Canon D60) and a Pentax 645N and am wondering whether to upgrade the D60 to the Canon 1DS or stay with the 645 and use both film and a digital back, if one is available. Anyone know if there is a digital back for the 645N or if one is planned? Would it be ...
Posted by CJWoodley on 17/12/2002 - 12:31
Optio 430 - Anyone tried or got the 430?
Best way to evaluate is probably from the , and from if you download the high res images you can print out and see if it satisfies your requirements too. My own personal opinion is the lens exhibits some . the areas are not smooth like from film emulsion (or the majority of digital cameras), ...
Posted by pencontax on 14/06/2002 - 16:55
Optio 330RS Problem - Optio 330RS Memory Card Corruption
I recently purchased an Optio 330RS, and have had a serious problem in corrupting my removable 64 Mb (Kodak) memory card. The way it happened; While the camera was switched on I pressed the small "display" button three times (the button just to the lower right hand side of the digital display). ...
Posted by Shannon on 30/12/2002 - 22:21
New *istD Digital Body
Hello Matt, I'm back with another question. I thought I was happy with your answer regarding actual/effective focal lengths and then while munching on the dinner a thought struck me. :roll: It's common now on digital compacts and video to see "zoom rating" being quoted as 3x Optical / 10x Digi...
Posted by Lurach on 30/05/2003 - 19:22
Optio s - memory card error...?
Hi, I occasionally get the memory card error. Gives me kittens thinking I've lost everything. But taking the card out and back in again sorts the problem. My son has an n-gage phone which is prone (can't spell "susseptible") to the same problem. He reckons the concensus of opinion is this is caused...
Posted by Anonymous on 27/12/2004 - 16:22
*ist D out in Singapore (Cathay Photo) but only one!!!!
Hi everyone!! It's been quite a very busy week for me at work, so I had little time playing with my new *ist D, much less posting in the forums :) But as promised, I am posting here my initial hands-on "review" and comments on the Pentax *ist D. Please note that this is based on my personal ...
Posted by ShotGun on 25/09/2003 - 15:29
My first *ist-D Sample Photos
Hi (Shotgun I presume), The AF360 cannot take a Stofen omni bounce - I bought one and had to send it back. It's got quite a wide shape to it. However, it does have it's own built in diffuser and catch light. That said, I will try it in bounce mode as soon as I can and let you know what happens...
Posted by MattMatic on 30/09/2003 - 06:58
My first *ist-D Sample Photos
Lurach, ...istD camera that istD great fun to use :) So far, so good. The only peculiarity is the amount of images I'm taking right now :roll: Battery life is splendid - I'm using 2200mAh batteries (from 7dayshop). Flash exposure is spot on. Autofocus is fast. I only have a few minor niggles ...
Posted by MattMatic on 11/10/2003 - 22:01
My first *ist-D Sample Photos
Lurach, Shutter lag... what lag?? I've have the S30 and it's painfully annoying. It's autofocus is the main problem. The *istD, on the other hand, is as quick as my Z1 - lightning. You can just rattle off the shots, and it feels very, very responsive. Obviously ambient light plays a part - it ...
Posted by MattMatic on 13/10/2003 - 21:47
My first *ist-D Sample Photos
Sorry Matt, It was I who didn't make myself clear enough. The reference to "loss of time" was in connection with Malcolm's post about two bodies losing the time when the AA batteries were removed and your pointing out about the pancake battery in the base. It's something else to check out when bu...
Posted by Lurach on 14/10/2003 - 15:48
