Search results for 'back focus' - page 966
Sigma 120-300 F2.8
They have apparently withdrawn the Sony version as well so maybe we still have a chance of getting one. Saying that I still don't think the K-5 AF system is up to such a lens (which would mainly be used for aircraft/sports and suchlike). I am still seriously cutting my Pentax lens collection to m...
Posted by jules on 20/05/2011 - 09:00
lens query
The switch to move between manual and auto focus is built into the camera body, not the lens. The particular lens you mention has a "Quick-Shift" function that allows you to leave the camera in autofocus and then grab the lens to manually focus (override) at any time. The lens will be just fin...
Posted by hefty1 on 20/05/2011 - 09:40
lens query
You don't need to WR because the Kx isn't WR (weather resistance) either. Je can look at the normal version the DA or the DA-L which is the light weight version with a plastic lens-mount and without a lens hood and quickshift. If you've a bit more money to spend the DA 55-300 is a better lens in...
Posted by Anvh on 20/05/2011 - 20:25
lens query
Rover - any lens will allow you to manual focus, just change the switch on the camera body. If you're starting out you could grab yourself a manual focus Pentax-A zoom, like the 80-200mm. That'll force you to practice manual focussing skills, and only set you back thirty quid or so.... :wink:
Posted by Pentaxophile on 20/05/2011 - 22:13
Sigma 50mm focusing issue
Treated myself to a Sigma 50mm f1.4. Most of the shots I've taken with it have been fairly close range portrait type shots that I've been very happy with. However, I've taken a couple of long range landscape type shots recently that are nowehere near as sharp. It appears as if it doesn't focus very ...
Posted by marklj on 20/05/2011 - 10:23
Sigma 50mm focusing issue
It isn't uncommon. The only way to be sure is to put the camera on a tripod and focus carefully with LiveView (if you have it) or the optical viewfinder. Use the widest aperture. Then try the autofocus, preferably by defocussing the lens first so that it has to start again - putting your hand in fro...
Posted by karma mechanic on 20/05/2011 - 10:35
Sigma 50mm focusing issue
I think the above reply sums it up but heres my two penneth anywyay. I get the imprssion from the blurb on this lens that its more suited to portrait work. From the lens description; It creates a very attractive blur, even when a small aperture is used. Is that a clever way of saying its so...
Posted by fatspider on 20/05/2011 - 10:47
Sigma 50mm focusing issue
Tried it at all apertures and speeds and on a tripod as well. Softness at the edge isn't the issue - its the out of focus look dead centre thats the problem. Its a lovely portrait lens and thats pretty much it. With hindsight I'd have saved a bit more and gone for the 50-135 which would likely have ...
Posted by marklj on 20/05/2011 - 14:14
Makinon F500 mm F8 pentax k mount
Yeah, agreed most references said 67mm, but it measures out at 80mm to me. But I've4 never found an 80mm to test with to confirm though. You want the thread for a hood? I could never find a 80mm hood either... If you want a filter they go on the rear - there should be 1 already there as lens...
Posted by layingback on 20/05/2011 - 22:27
Makinon F500 mm F8 pentax k mount
Indeed with the current price trend of mirror lenses (downward) and filters (upward) it would surely be cheaper to just buy another replacement mirror lens if you did scratch it than buy the filter now in case you did. Assuming you even found an 80mm filter that is :-) When I bought all my K len...
Posted by layingback on 21/05/2011 - 12:32
Another help me regarding my lens set up thread...
FWIW I can heartily recommend the DA21 Ltd. The DA40 Ltd is also an excellent lens (unless you want to focus it manually, as it is so small that focusing by hand is difficult). Both are pancakes, so they are about as unobtrusive and lightweight as you'll find. I've got images taken with ...
Posted by i-Berg on 21/05/2011 - 06:38
Which wide & fast lens...?
Your 50/1.4 is more like a short tele on a crop and as others have said you definitely need wider. I have both the Tamron 17/50 /2.8 and the Sigma 30/1.4 and although the Sigma is wide enough for small groups in confined spaces I'd take the Tamron any day of the week for it's flexibility - it's a v...
Posted by Frogfish on 22/05/2011 - 18:22
Which wide & fast lens...?
Your 50/1.4 is more like a short tele on a crop and as others have said you definitely need wider. I have both the Tamron 17/50 /2.8 and the Sigma 30/1.4 and although the Sigma is wide enough for small groups in confined spaces I'd take the Tamron any day of the week for it's flexibility - it's a v...
Posted by Smeggypants on 22/05/2011 - 20:26
Which wide & fast lens...?
Since the other topic got locked (a bit odd, since John had posted in it himself, but never mind!), this is a follow-up to . I've had a look at the shots I took at the one wedding I've done. Of those shots taken during the ceremony itself (and as I said in the other thread, this was in a room wi...
Posted by MrCynical on 23/05/2011 - 18:59
I have a wedding coming up.
You can do the wedding with just the 18-55mm and it's not a bad idea to do so for the first one as there's enough going on without worrying about kit. A faster prime lens might be useful, so the 50mm f1.4 will be needed as well. The flashgun for fill in flash outdoors and for use indoors if necessar...
Posted by johnriley on 22/05/2011 - 22:39
I have a wedding coming up.
I partly agree with John. I would leave the manual focus lens home and use the kit lens and the FA 50. I would also take the 10-24 along, just in case there is not enough space to include everybody in the group shots. I would also look for a good friend to lend you a second body, hopefully the sa...
Posted by pentaxian450 on 22/05/2011 - 23:39
Chelsea Flower Show virgin! Which lenses to take?
Just as a bit of feed-back, the 16-45 stayed on the camera all day. Would have/could have used a wider lens ie 12-24, as I reckon 90% of my shots were within that focal length range. Trying to analyze exif data at the moment (see my other thread for help on what tool to use for analysis of '...
Posted by JohnX on 26/05/2011 - 07:55
Measuring before Adjustment
Borrowed from elsewhere: The method is based on the information published here: http://www.pentax-hack.info/documents/blog.php?page=1 1. Use a notepad to create a file MODSET.TXT with the following line: [OPEN_DEBUG_MENU] followed by a new empty line. 2. Save the file on the root directo...
Posted by karma mechanic on 23/05/2011 - 13:38
Measuring before Adjustment
I am no expert here but I think you may want to repeat this with a focus chart designed for the purpose. Most of these have a large black and white area in the centre in order to ensure that the focus point is actually in the middle of the scale. The problem with focussing on a single line is ensu...
Posted by WobblyGoblin on 23/05/2011 - 13:45
Measuring before Adjustment
I am no expert here but I think you may want to repeat this with a focus chart designed for the purpose. Most of these have a large black and white area in the centre in order to ensure that the focus point is actually in the middle of the scale. I know of two charts: One has the chart for mount...
Posted by DoctorJeff on 23/05/2011 - 14:17
