Search results for 'back focus' - page 1094
Sigma 105 Pentax Question
I've been using the 105mm Macro for the last 4 years and it's a great lens. Use it manual focus nearly all the time as well for better control of the focus point. Nice and sharp too! :D
Posted by eenymac on 01/07/2013 - 11:50
Sigma 105 Pentax Question
Hi Alistair, DO NOT worry about this lens being inferior in any way - it is a superb lump of glass. You don't need the OS version for a focal length of 105mm! When you say it's noisy, it is a screw drive lens so will not be as quiet as a SDM lens, but it is less noisy than some of the Pentax screw...
Posted by davidstorm on 01/07/2013 - 20:43
Replacing the kit lens: what's faster with more range?
My 17-70 doesn't hunt, I know some users have reported this, but it's a bit unclear why it happens; maybe issues with the electrical contacts if they're not clean? I have experienced some 'jiggling' of focus on the K-5 (not on the K-5IIs though), but images shot with the lens are invariably sharp an...
Posted by davidstorm on 02/07/2013 - 21:07
Replacing the kit lens: what's faster with more range?
Or there is the slightly older but excellent Sigma 17-70mm F2.8-4.5 DC Macro which can probably be had for less outlay..... I have one. Love it. Great quality for the money. Love the close focus ability of it too
Posted by Smeggypants on 02/07/2013 - 21:55
Replacing the kit lens: what's faster with more range?
no No no No No No No... I have only one recommendation, if you're going to splash the cash - get the best - the DA*16-50. Yes, it might have it's issues, my SDM did fail - but it came back from JPS absolutely perfect - so much that all my other mid-range zooms were sold and I'm just left with ...
Posted by ilovesaabs on 02/07/2013 - 22:34
Replacing the kit lens: what's faster with more range?
70mm is no increase over 55mm... I zoomed the difference on my 55-300 when considering a 17-70 and it instantly made my mind up that I needed something longer. I love my sigma 18-125, quick and quiet to focus too... don't stick a filter on it to protect the lens though - flares like crazy
Posted by judderman62 on 02/07/2013 - 22:58
Replacing the kit lens: what's faster with more range?
Limited primes are too much, and we'd get fed up of constantly changing lenses. Kilburn, sounds like you're in the same boat as me. The Sigma ticks the boxes because it seems better "all around" - quicker, slightly more range, quicker to focus.
Posted by Garnett on 03/07/2013 - 19:12
New Da*200 has dust. What should I do?
On 26 June I bought a new da* 200 and when giving it’s test run I noticed dust in the lens. Not a few specks but quite a lot. Having read that dust has very little effect on image quality I wondered about resale value. So I went to the nearest used camera shop to see what they would give me. He ...
Posted by kiwao on 07/07/2013 - 04:33
New Da*200 has dust. What should I do?
If you are not happy then return it before it's too late, otherwise it will gnaw at you every time you use the lens. This time write down the serial number and check it when you get the replacement, before leaving the shop! Your comment makes absolute sense but I have used several copies if this len...
Posted by kiwao on 07/07/2013 - 10:35
New Da*200 has dust. What should I do?
Consumer protection laws aside, I would have thought being in Japan offered distinct advantages. Before revisiting the retailor, I would be contacting Pentax direct and making them fully aware of the situation. I am pretty sure that they would not want an authorised agent to be acting in the way tha...
Posted by kiwao on 07/07/2013 - 11:22
New Da*200 has dust. What should I do?
Kiwao - have you considered taking the lens back to the guy that sold it to you, and perform a colonoscopy on him with the lens? :D Joking aside, try writing to the CEO of Ricoh Pentax, and in the letter, clearly state that you would like him to offer you a price for every piece of your Pentax ge...
Posted by steven9761 on 07/07/2013 - 11:54
images from 2 copies of Da*200
Have you optimised focus adjustments for the new lens, it might be front/back focusing.
Posted by smc on 13/07/2013 - 20:41
Adaptall 2 mount for Ricoh
I have a PK-A mount you can have for a little cheaper than £50. It has a problem in that the contacts don't quite line up correctly and so it wont auto meter etc but if you move it back slightly (just before the click when the lens locks on the body) then it's fine. It's usable like that or if you a...
Posted by Mike-P on 10/07/2013 - 16:46
Manual focus zooms on dslr question
Hi I've just been given a couple of pentax film cameras and both came with a Pentax A 28-80mm lens. I would like to try one on my dslr but I'm struggling to work out which focal length to input on the camera when it starts up. Can anyone help me with this please? Thanks in advance 456
Posted by fourfivesix on 14/07/2013 - 09:19
Manual focus zooms on dslr question
Almost all the lenses I use are analogue, and I tend to enter one and a half times the maximum zoom of the lens as effectively the lens you have translates to approximately 42-120mm in digital terms on a DSLR. So in this case I would enter 120. I don't know if I am correct in doing this - but it wor...
Posted by GaryJohn on 14/07/2013 - 10:01
Manual focus zooms on dslr question
You need to set the focal length that you are using! The focal length setting is for calibrating the Shake reduction on the camera. You could try setting to a mid position and hope it won't make much difference or just turn the shake reduction off and use the camera as normal, you just don't...
Posted by doingthebobs on 14/07/2013 - 10:03
Manual focus zooms on dslr question
Thank you I will give both ways a try
Posted by fourfivesix on 14/07/2013 - 10:11
Manual focus zooms on dslr question
An interesting difference of opinion [which doesn't help you a great deal]. I had always assumed that the SRS needed to understand the likely degree of magnification that the sensor would need to deal with, and as a zoom will likely capture a range of focal lengths during a single use, that it was t...
Posted by GaryJohn on 14/07/2013 - 10:20
Manual focus zooms on dslr question
Gary, I know many people may disagree but I think that your premise that having a cropped sensor with respect to full frame or 35mm film cameras leads to some form of magnification is incorrect. Having a smaller sensor I my opinion simply leads to capturing a cropped image of the scene. I think it ...
Posted by jamieallan on 14/07/2013 - 10:49
Manual focus zooms on dslr question
I had always assumed that the SRS needed to understand the likely degree of magnification that the sensor would need to deal with, This is absolutely true but the SRS does its sums based on the focal length of the lens and as such it is always the real focal length you need to input and the sensor s...
Posted by gwing on 14/07/2013 - 10:52
