Search results for 'back focus' - page 1057
Which macro lens for K-x ?
Cheap manual extension tubes are good for experimenting with. Under a tenner new. The .24 magnification combined with the 40cm focus distance through the whole range make the 18 - 135 DA WR at 135mm good for close up of butterflies (some examples recently on my gallery). The problem with the 55 -...
Posted by wvbarnes on 19/08/2012 - 10:33
Which macro lens for K-x ?
Another vote from me Sally for the Sigma 105mm F2.8 DG EX Macro. I've owned one for a few months now, after previously having a Sigma 50mm manual focus F2.8 macro and I think it is a superb lens. The 105 is definitely the better lens, although the 50mm was sharp, it was not as consistently good. ...
Posted by davidstorm on 24/08/2012 - 00:21
Checking a Pentax lens serial number
Good evening, As may have been noted in "Leads to Deals" I have just receive a Pentax 18-135WR which is claimed to be a genuine, not grey, import. Is there anyway/anywhere I can check if the serial number in question denotes a genuine import but I might want to consider returning the lens unde...
Posted by jeallen01 on 19/08/2012 - 19:10
Affordable first zoom
I got my F100-300 for £70 a couple of years back, and have seen them & the FA equivalent going for similar prices often enough. It's rather heavy but if you want longer than the 50-200 it makes a cheap option with reasonable IQ, and doesn't sacrifice the auto focus/aperture. Going further back th...
Posted by petrochemist on 19/08/2012 - 21:45
lens to go with Pentax K5
I am reasonably new to photography even though I have owned a pentax camera for some time. I am thinking of buying a Pentax K5 DSLR. At this stage I cannot afford new lens. I have a Tamron AF90-300mm F/4.5-5.6 model 62D lens and a Sigma 28-80mm F3.5 - 5.6 am.mf lens but no model number. I have...
Posted by ailurophile on 24/08/2012 - 04:39
lens to go with Pentax K5
Hello I use m42 and k mount manual focus lenses with both my k5 and k10a s well as af versions. For m42 the camera meters very well in av mode and also provides focus confirmation once the central point is in focus. With mf kmount lenses I have to use the maual setting on the dial and pr...
Posted by Stuey on 24/08/2012 - 12:33
sigma 50-500
I sold mine on here a few weeks back for not much more than that.
Posted by Mike-P on 24/08/2012 - 16:04
Advise on new lens
Another advantage of tubes is that they can be used with other lenses (not just you macro) as well to provide closer focus. I use them this way quite often (although I only use Auto tubes for this). David is quite right - your better getting a quality set of tubes (well engineered) and if you are...
Posted by LennyBloke on 29/08/2012 - 20:26
Samyang 14mm f/2.8 ED AS IF
there's a couple flickr groups for this lens - discussion here which mentions the distortion: http://www.flickr.com/groups/samyang_14mm/discuss/72157623928811718/ I am interested in this lens as I'd quite like a prime around the 14/15mm area and manual focus is no biggie as I mostly manual focus....
Posted by judderman62 on 15/10/2012 - 21:05
TEST: TAMRON SP AF 17-50mm 2.8 XR Di II LD IF vs FULL FRAME
I tried my Tamron 17-50 2.8 on my MZ-7 a while back... Vignettes heavily at the wide end and although it lessens as you zoom in; it continues to vignette all the way to 50mm... Still... I got some (what I consider) great shots in 'Northside Tattoo' in Newcastle:D
Posted by DaveHolmes on 02/09/2012 - 21:30
Lens hood
I am Looking for a lens hood for my recently aquired lens (K 28 mm f3.5). All my other manual focus lenses came with an expandable rubber lens hood, which I have been very pleased with so far. I do however like the solid feel of metal hoods and have been looking at a Dorr 52 mm as this one: http:...
Posted by RyanK on 28/08/2012 - 19:42
Lens hood
Totally agree with Algernon. I was happy about rubber lens hood until discovered the metal ones. You can fix it on the lens backwards while carrying in bag. Handy things! :wink: Personally, I'm inclined the other way, i.e. I prefer rubber hoods for quite a few reasons: - Don't need to be taken off ...
Posted by jeallen01 on 30/08/2012 - 21:08
60-250 f4 lense
It does depend on the sport, if you are talking motorsport apparently its slow to focus, this is the reason I went for the Sigma 70-200 f2.8.
Posted by SteveEveritt on 02/09/2012 - 19:43
60-250 f4 lense
I use my recently purchased (less than 3 weeks ) 60-250 F4 DA* on my K5 for motorsport at a track where I can photograph from the infield and it is slow to focus as mentioned in this thread. 2 examples below. First shot is fine but the next shot was way oof.
Posted by malvern_man on 06/09/2012 - 22:29
60-250 f4 lense
I've found the 60-250mm with K5 very good for rugby, I always use the centre single spot focussing for sport, it takes practice to get the technique right, if the focus point strays off the subject the camera will hunt to achieve focus again. These were taken with the 60-250mm & K5, with a bit of...
Posted by mille19 on 07/09/2012 - 14:42
Extension tubes
Hi John I use the 'catch in focus' feature on the K-r most of the time when taking macros with extension tubes. Some people prefer not to use it, but I find it gives me a higher success rate (though I have plenty of duds as well). Might be worth a play with and see if it helps, but as David sa...
Posted by milamber on 04/09/2012 - 20:33
Extension tubes
I had a prototype in the garden a few nights ago but holding a torch, then trying to focus manually on an over active moth was a bit too hard. http://www.google.co.uk/#hl=en&output=search&sclient=psy-ab&q=pringles+flash+macro I'm aiming for the hotblack desiato style
Posted by dougf8 on 04/09/2012 - 20:57
Tamron 70-210 19AH model
Could we get back to the more interesting lens discussion? :) I've had both the 103A and the 19AH and both are very good and although the latter is claimed to be the better I couldn't see much difference. The latter is an SP lens so should be better in theory and has slightly better macro performan...
Posted by dcweather on 08/09/2012 - 21:53
Tilt/Shift lens
I seem to remember a post a while back that suggested tilt/shift lenses aren't as effective with small sensors as they are with FF. I'd be interested to know if anyone has found this to be the case. (I'm sure we could work it out by plotting light paths etc ... but life's too short). Al
Posted by Aero on 24/09/2012 - 22:21
New 55mm F1.4 Zeiss Lens
Zeiss have announced this lens for mirrorless and certain DSLR's http://www.dpreview.com/news/2012/09/07/Carl-Zeiss-preparing-Distagon-55mm-F1-4-for-Canon-Nikon-lenses-for-mirrorless-system-cameras No Pentax mount (surprise!), but do we care when we have the Tak's to fall back on? Of course no...
Posted by Offertonhatter on 07/09/2012 - 22:09
