Search results for 'back focus' - page 784
Lens Price Increases!
oh poop. This thread is making me want to buy the 50-135 lens now. I just got a tamron 17-50mm instead of the 16-50 i was going to get. I was thinking - if i was to get a 25000 loan to get the good interest rate, I could then pay back 24480 back the next month and pay the lens off over 15 years ...
Posted by Snootchies on 06/06/2009 - 22:35
Lens Price Increases!
oh poop. This thread is making me want to buy the 50-135 lens now. I just got a tamron 17-50mm instead of the 16-50 i was going to get. I was thinking - if i was to get a 25000 loan to get the good interest rate, I could then pay back 24480 back the next month and pay the lens off over 15 years ...
Posted by maff on 07/06/2009 - 14:45
Mirror lens
Thank you all so much for taking the trouble to help. The make of lens is 'SIRIUS' Numbers on the lens are,,, 1:4. 1:5. 1:6. MACRO. 12,15,20,30,70. 4,5,7,10,20 &Infinity. There is no aperture ring. I think those numbers are from the focus scale and will give an approximation of the distan...
Posted by Mannesty on 03/06/2009 - 16:28
About filters system
Hi all! Hoping this is the correct section, I have got: - 12-24 diameter 77 mm - 17-70 diameter 72 mm - 55-300 diameter 58 mm - 50 - diameter should be 49mm I would like to buy a ND and a circular polarizer, which system should I look for, to be able to use the same filter on more lens...
Posted by max11 on 29/05/2009 - 23:18
About filters system
Hi Stefan, thank you for your help. those prices are very cheap, I wrote them an email. AS Cokins looked quite expensive (£114 holder+grad nd kit +£10 adaptor), yesterday I did a research and found out that Hitech and Lee could be an alternative, slighlty more expensive, but much better quality ...
Posted by max11 on 08/06/2009 - 23:55
FA50 Accessories
Hi Chris, Did you call us yesterday about this? The above items are no longer in the price list, but I am waiting to hear back from Steve at Pentax to see if he can source from Japan. Will let you know when I hear back - if you are able to come down to us next Saturday he will be here to ask! ...
Posted by Chris@SRSWATFORD on 30/05/2009 - 09:56
Angle of view for Pentax M lenses
Thanks very much This is a good site (but a weird one!) and it may explain why I'm have got confused info before - WHY would anyone need to know what the diagonal AOV was? Reason for the question is, of course, that I use film and a 1.5 crop, plus some other lenses, and it's easier to recce wit...
Posted by BigTed on 01/06/2009 - 23:06
Angle of view for Pentax M lenses
good idea, I always used to carry my digital compact around with me and take snapshots if I saw a photo I wanted to take. That way I could come back later with the "big guns" and at a sensible time for the light.
Posted by Mongoose on 02/06/2009 - 07:22
Angle of view for Pentax M lenses
Thanks folks (I put a response on this, but it disappeared somewhere. Try again...) I realise now (belatedly, and thanks to the responses/docs in this thread) that some (all?) manufacturers - including Pentax and Sigma - use the DIAGONAL for the angle of view spec. This probably makes sense fo...
Posted by BigTed on 03/06/2009 - 12:51
Angle of view for Pentax M lenses
aha! as I thought! (and so recently :o) This does back up the theory that buildings do not get bigger (or move) between the recce and the final tripod set up I guess it the logic of the people who make the lenses v the logic of using them - just quirky enough to confuse you. Thanks Jo...
Posted by BigTed on 03/06/2009 - 13:31
M42 lens conversion
Yes. Remove the back of the lens, slip a piece of electric insulation cable sheath over the pin (so there's only about 1mm showing at the end) and reassemble. The plastic sheath from the cable will prevent the pin from popping up so the lens will act as a manual one. If you ever want to use it in...
Posted by hefty1 on 01/06/2009 - 23:50
Lens extension FA50
Extension tubes move the lens away from the camera so that you can focus towards closer distances (like a macro lens); the trade off is that you lose distance/infinity focus so it's not much use for walking around with. You could always try wrapping something around the lens barrel to give it mor...
Posted by hefty1 on 02/06/2009 - 22:48
LENS CAPS NEEDED
womble, you have there an early style Pentax back cap. Later ones have an extra flange that protects the electrical contacts.
Posted by johnriley on 07/06/2009 - 22:26
How do yuo do it! Manual 50mm question
Evening all. How do you folks get amqzing results with your manual focus 50mm lens? I have had a few good shots however , most of them are out of focus etc, Also when it is used in low light how do you focus or is it nar impossible to do this? thanks
Posted by organicimagery on 04/06/2009 - 23:20
How do yuo do it! Manual 50mm question
When using manual focus lenses ensure your dioptre is accurately set. I found that the hard way. :wink:
Posted by Clarky on 04/06/2009 - 23:38
How do yuo do it! Manual 50mm question
Evening all. How do you folks get amqzing results with your manual focus 50mm lens? I have had a few good shots however , most of them are out of focus etc, Also when it is used in low light how do you focus or is it nar impossible to do this? thanks For scenics, very often, I use hyperfocal distanc...
Posted by Banjo on 05/06/2009 - 03:37
How do yuo do it! Manual 50mm question
Try enabling the 'catch in focus' settings until you get the hang of it.8) See thread
Posted by Hardgravity on 05/06/2009 - 08:47
How do yuo do it! Manual 50mm question
I use the beeping focus confirmation on my Samsung GX 10, works well and the noise helps in low light but on my Pentax K100 I put in a cheap ebay split focusing screen which did the job ok
Posted by Poolhall on 05/06/2009 - 10:11
How do yuo do it! Manual 50mm question
If you are focusing very close, you might get back or front focusing. I have it in ALL my MF lenses :( I've used 50mm F1.7 with both a split prism focusing screen and the stock screen and then the focus confirmation and got same bad focus results. Generally, when using MF lenses I use the focus...
Posted by edumad on 05/06/2009 - 10:49
How do yuo do it! Manual 50mm question
If you are focusing very close, you might get back or front focusing. I have it in ALL my MF lenses :( How can that be? Perhaps your dioptre is not adjusted correctly? My understanding is that back/front focussing only affects AF lenses and AF focussing. Any lens focussed manually should repro...
Posted by Mannesty on 05/06/2009 - 10:54
