Search results for 'back focus' - page 969
A few q's about the Sigma 30mm, eBay and Sigma sevice before I buy...
Thanks steve, I completely know what you're saying. I've never had a bad copy of a lens too. looking at some out of focus shots with the Sigma 30mm 1.4, it looks like a lot of it is user error, some people have done focus and recompose, which doesn't work well with the thin dof that 1.4 gives. Th...
Posted by flossie on 29/05/2011 - 11:54
A few q's about the Sigma 30mm, eBay and Sigma sevice before I buy...
GW cameras got the address wrong and I had to collect from the wrong address! Luckily the old lady was very friendly and handed over the lens after showing her some ID, but what happened if it were someone else? Citylink are also to blame, the package was addressed to Victor Chu and it was signed fo...
Posted by vincechu on 04/06/2011 - 16:03
Decentred lens
I am having some trouble with my DA*16-50. It is now out of warranty and seems to have developedg a really bad decentring problem but only from 20-40mm. At the extremes where I use it most of the time it seems to be fine. I have done a lot of testing and it is definitely quite bad. About 1/4th of...
Posted by Tyr on 27/05/2011 - 20:54
Decentred lens
JP Solutions is the authorised repair centre for Pentax - follow the details on the Pentax.co.uk website or Google them. They will quote you for repairing your lens back to its factory state. I've had a K10D repaired by them and the repair was exemplary, albeit rather slow.
Posted by johnriley on 27/05/2011 - 22:14
Decentred lens
Lens is with JPSS awaiting repair. Should be back with me at the end of next week. It is a good sharp lens, just a shame one side wan't quite right. Can't wait to get is back fixed! I do wish that DA* lenses were a priority and had better turn around though as it is going to be about 3 weeks. ...
Posted by Tyr on 10/06/2011 - 23:12
Do we think there's any chance...
To address the original question, a 28mm lens would be the "perfect normal" on APS-C, as it would recreate the field of view of a 43mm lens on 35mm film. A 24mm lens would also be extremely useful, recreating the common 35mm street prime from film days. I use the 24mm focal length all the time, e...
Posted by rparmar on 28/05/2011 - 21:56
Do we think there's any chance...
Problem with the Sigma is the edges, I'd like something with a flat plane of focus and even sharpness across the frame. This is because I use the whole frame not just the centre for studio shoots. 28mm is perfect for that kind of shot but I only have the A28 which is a pain to focus and recompose...
Posted by Tyr on 29/05/2011 - 14:04
Do we think there's any chance...
True except the last statement. Relating this to the real world, a "standard" lens is one that comes closest to showing a scene as our eyes see it. The field of view of 43mm has nothing to do with how our eyes see. It is an accident of film size. How does one test this? Simply look at a scene....
Posted by Don on 29/05/2011 - 14:24
Do we think there's any chance...
Perhaps I should be making more use of my manual Tamron 28mm f2.5 (02B) - a focus free walk-about?
Posted by pgweber on 29/05/2011 - 15:25
Do we think there's any chance...
[quote:3496ace15f="johnriley"]There is a 31mm lens that should do very nicely... A snip at c.£1000:lol::shock: John If only I had that money to spare.[/quote] Quite - although I wonder if they're a bit leery of making multiple lenses with the same focal length for fear of losing sales of the m...
Posted by Dangermouse on 29/05/2011 - 17:26
Do we think there's any chance...
[quote:3496ace15f="johnwhit"][quote:3496ace15f="johnriley"]There is a 31mm lens that should do very nicely... A snip at c.£1000:lol::shock: John If only I had that money to spare.[/quote] Quite - although I wonder if they're a bit leery of making multiple lenses with the same focal length for ...
Posted by Don on 29/05/2011 - 17:44
Changing Pattern of Lens Range
I hope Pentax comes back with some more of the oddball specialty lenses. softs, shifts, pancakes etc. I would love to see Pentax expand what they did with the 35 2.4, and bundle them as a box set... that would be an awesome lineup. a box set of econo primes, a set of pancakes and ltd's and a ra...
Posted by Don on 29/05/2011 - 16:01
Changing Pattern of Lens Range
How simple life must have once been for lens designers, in the sense that all the manufacturers would have slow and fast lenses in the same focal lengths 24mm-28mm-35mm-50mm and so on. Pentax stood out by always making odd focal lengths (and still do) such as 30mm, 120mm, 150mm. It should also be no...
Posted by rparmar on 29/05/2011 - 23:34
Changing Pattern of Lens Range
The only lens I can think of buying in the near future is the Sigma 85mm/1.4 Perhaps pentax shoudl get back to making fast lenses. How about a DA* 30/1.2 and DA* 85/1.2
Posted by Smeggypants on 30/05/2011 - 00:43
Changing Pattern of Lens Range
It is apparent Pentax has little interest in making fast lenses and there are some good reasons why. 1. Higher attainable ISO values reduce the need for speed for the purposes of low-light photography. 2. Most shooters rely on auto-focus mechanisms that have a hard time past a certain aperture...
Posted by rparmar on 30/05/2011 - 01:17
Changing Pattern of Lens Range
:DIt is apparent Pentax has little interest in making fast lenses and there are some good reasons why. 1. Higher attainable ISO values reduce the need for speed for the purposes of low-light photography. 2. Most shooters rely on auto-focus mechanisms that have a hard time past a certain apertu...
Posted by Don on 30/05/2011 - 01:46
Changing Pattern of Lens Range
It is apparent Pentax has little interest in making fast lenses and there are some good reasons why. 1. Higher attainable ISO values reduce the need for speed for the purposes of low-light photography. 2. Most shooters rely on auto-focus mechanisms that have a hard time past a certain aperture...
Posted by Smeggypants on 30/05/2011 - 02:18
Changing Pattern of Lens Range
It's true that faster than f/2 can produce some interesting effects, but these are gimmicks in the same way adding effects in PP is a gimmick. Some might like them for aesthetic reasons but it is hardly a reflection of true optics. This is hard for me to understand. I have always thought of aperture...
Posted by Pentaxophile on 30/05/2011 - 12:12
Opinions on the Sigma 30mm f1.4 please
I like my 35mm limited but realise I have nothing better than f2 in my gear. I think a very fast normal/wide lens will be very useful for travel e.g. in a dimly lit restaurant. The 35 limited is also slightly not wide enough for me, my "normal" is probably closer to 40mm equivalent, not 53mm. It ...
Posted by testdasi on 29/05/2011 - 15:09
Opinions on the Sigma 30mm f1.4 please
Excellent - get one. I love mine; it's great for low light work and portraiture. I haven't got a 35 limited (although I would like one), but from what I read about it, it is a very different lens and would probably complement the Sigma well. I don't think that the Sigma will be as good as your 35 li...
Posted by sorted78 on 30/05/2011 - 09:41
