Search results for 'back focus' - page 2281
Manual focus and old eyes (69y)
Is 30fps timelaps, I thought that was real time video? No it isn't but to get a fluid video you need around 24fps to 30fps, you could use some tricks of course. 16fps is the bear minimum or else you see flashing images. ps. I mean that the video need to be that, not amount of shots the camera ne...
Posted by Anvh on 24/10/2009 - 20:56
Manual focus and old eyes (69y)
It is intended for still images but if you wanted to use it to make a movie then you could always re-set it after the 99th shot as long as the Camera was stable enough. Still a very useful feature for someone who does not do enough time lapse photography to justify buying a specialist piece of kit. ...
Posted by PeteL on 25/10/2009 - 10:04
Memory Cards
Have Sandisk extreme III 2GB and 8GB Use the 2GB as back-up and that one is in a SD cover that it was suplied with. Why sandisk. because they were the most respected but will go for Toshiba now, their white cards seem to be very good. For transfer, I use the card reader that was packed wit...
Posted by Anvh on 23/10/2009 - 14:55
FF Pentax anyone?
As per the link, Pentax don't agree either. That's just a rumour isn't it? It is but the second link for the translation seems to back it up? regards
Posted by K10D on 25/10/2009 - 16:07
FF Pentax anyone?
In that case, the field of view of both lenses is the same, but a 400mm lens has more DOF than a 600mm one. You get the same effect over different film formats. For a given field of view, such as a "standard lens" for example, larger formats have less DOF because they need longer lenses. An ex...
Posted by johnriley on 26/10/2009 - 17:48
Dynamic Range and Medium Format
Almost all of my work is for publication on the web or in print and I did a test a while back using my 645 and *istDS on a shoot, apart from a slightly 'filmy' look on the MF pictures there was nothing to choose between them on a computer screen. I really don't have much use for large prints which w...
Posted by gartmore on 26/10/2009 - 12:14
Dynamic Range and Medium Format
I have a friend who bought the latest most expensive FF Nikon which can switch between the two formats. He would not belive that regardless of the sensor size selected the the image progected onto the sensor remained the same size. Greg If I understand what you say here, let's assume; A rectan...
Posted by K10D on 27/10/2009 - 02:33
Double sided Inkjet Paper
Fotospeed do a couple of high quality double sided papers and also another couple of a lower cost variety They also offer free profiling for your own printer & ink combination with their papers. Highly recommended supplier, they always exhibit at Focus each year , unlike Pentax, who, unli...
Posted by RichardDay on 01/11/2009 - 11:03
Double sided Inkjet Paper
Fotospeed do a couple of high quality double sided papers and also another couple of a lower cost variety They also offer free profiling for your own printer & ink combination with their papers. Highly recommended supplier, they always exhibit at Focus each year , unlike Pentax, who, unli...
Posted by PeteL on 01/11/2009 - 11:14
Photo Forums...The Gladiators
Good point. I've often mentioned other makes I own in forum threads, as have other members with no replies of "It's a Pentax forum dummy!" In fact, a certain member on here keeps reminding us he has a Horseman (and bad back from lugging it around!) But the one thing we all have on this foru...
Posted by Hardgravity on 27/10/2009 - 09:05
Photo Forums...The Gladiators
I did watch a program a few years back when 3 photographers were invited to go out and take pictures, one with a camera phone, one with a compact and one with the DSLR, what surpised me was yes they were reluctant to accept the compact and phone cameras but none the less they preceded to use the equ...
Posted by noddywithoutbigears on 27/10/2009 - 20:34
Sigma 150-500mm f5-6.3 DG HSM Lens For Pentax
Hi everyone, can I just ask, is the above lens automatic focus, I'm guessing it is as it's HSM ?
Posted by RachelK on 28/10/2009 - 07:48
Kata DCS 3N1-30 DSLR Camera Sling / BackPack Bag
Hi All, HAs anyone used one of the above bags, I have a Lowpro 100 which is just a bit to tight to take my camera with my Tamron lens attached to it. I have one, excellent bag to carry and many different options to put it up on your shoulders along with it being super light makes it a fantastic bag...
Posted by aminstar on 29/10/2009 - 15:23
Kata DCS 3N1-30 DSLR Camera Sling / BackPack Bag
I had to deal with this recently and my primary goal was 1) carry all my kit when I need to (hand luggage on a plane) with laptop 2) carry a selection of my kit for walks etc (possibly with laptop) I knew I would not get away with just the one bag but I needed one small enough to carry on t...
Posted by ericp on 30/10/2009 - 00:18
Question from a member
Hi guys, can anyone help me with a response to this question please: I have had my K10D converted to IR. The auto focus is a bit off. Can I adjust the auto focus? If so, how? Thanks Dan
Posted by PentaxDan on 29/10/2009 - 14:55
Question from a member
Hi Dan, Ref the K10 focus issue. There is a debug facility that can be downloaded from a Russian site for free and there are several threads on this forum explaining how it can be utilised. As a keen birdwatcher myself, I don't believe there is a Pentax equivalent to the Nikon DSLR adaptor for...
Posted by Blincodave on 29/10/2009 - 15:29
Question from a member
I'm afraid this has nothing whatsoever to do with the K10 issue on back focusing. Infrared light focuses on a different plane to UV light. Until relatively recently Pentax lenses had an IR focusing index; you focus in the normal way and then move the focus distance on the lens focusing ring from...
Posted by gartmore on 29/10/2009 - 15:42
Question from a member
As gartmore said, infra red light focuses at a different point to the visible sepctrum and lenses are not usually corrected for this. The point of focus changes and old manual focus lenses have an IR mark to move the lens to after focusing. As IR photography needs a very measured approach, usuall...
Posted by johnriley on 29/10/2009 - 15:54
Question from a member
And just to add to John's comment, Pentax F autofocus prime lenses have the IR index as well but you would, of course, have to use them in manual focus.
Posted by gartmore on 29/10/2009 - 16:01
Question from a member
certainly in terms of astronomy I get better results with my 300mm F2.8 lens than I do attempting prime focus photography with an 8 inch Newtonian. However, if you want to attach a camera to any telescope with a standard interchangable eyepiece (usually 1-1/4 inch or 2 inch), this is easy. My Dad...
Posted by Mongoose on 29/10/2009 - 16:50
