Search results for 'back focus' - page 1050
Miranda 70-300mm Macro?
Hi kh1234567890 Thanks for your reply. Actually I think it was your review that led me to buy my copy. Bought it for £13 I think. I primarily bought it to check out if 300mm was enough for my needs. I do find it hard to use for birds and moving subjects, mostly due to lack of skills I rec...
Posted by BrianDK on 17/06/2012 - 19:07
Miranda 70-300mm Macro?
That's about the going price. The problem with that lens is that the focus varies a lot with zoom and at 300mm it takes a while to get the knack of focusing well anyhow. The stock Pentax focus screen doesn't exactly help either. As for exposure, if you shoot RAW then you can usually tweak the ...
Posted by kh1234567890 on 17/06/2012 - 20:14
Samyang ??
I have recently joined the forum, and on my wishlist was a wide angle prime (14 -15mm). I had thought I might try and find one of the old manual lenses of this type, but in another discussion Pentaxophile mentioned a 14mm by Samyang (Korean). I checked it out on Lenstip.com where it gets a good reco...
Posted by McGregNi on 20/06/2012 - 19:33
Samyang ??
Not sure about that Mike. The 85/1.4 is usable at f1.4, but the focussing issues with such wafer thin DOF go with the territory. Liveview and now focus peaking can help a lot. The 14mm does have some barrel distortion (especially on FF) but the sharpness - according to every review I have read, a...
Posted by Pentaxophile on 20/06/2012 - 21:27
Samyang ??
Regarding the 14mm - which I sorta played around with the idea of considering. from photozone "The biggest weakness of the Samyang is the rather extreme amount of complex barrel distortion (mustache style) which is difficult to correct during post-processing. If you're into architecture photog...
Posted by judderman62 on 20/06/2012 - 21:45
Samyang ??
Hi Nigel, I'm reviving a year or so old thread here, but I'm curious to see what your thoughts are long term on this Samyang/Rokinon 14mm f2.8 lens, now you and others have owned them a while? I'm looking to add a wide angle lens to my kit and frankly this costs a lot in the APS-C world. I do...
Posted by richandfleur on 04/02/2014 - 00:26
lens prices stabilising again...?
Oh and come to think of it,a new P.C. has to come first, my eighteen month old one is already a shed! Your pc is probably fine, Jules... Maybe fit another hard drive, and/or an external HD??.. I've seen 3Tb drives, but I think they are a bit expensive atm. Thought about that but I was soo lucky I go...
Posted by jules on 25/06/2012 - 21:47
Best place to try Pentax/K-mount lenses in London?
I have tried out lense in before, particularly Sigma lenses - they are at the Euston road end of TCR near Warren Street tube. However, I seem to recall that there have been some negative comments on this site regarding this retailer. My personal experiance is only trying out lenses and not act...
Posted by WobblyGoblin on 28/06/2012 - 09:13
Sigma 10-20mm f4-5.6 confusion
This is a repeat of an earlier thread I think. I own the F4 - 5.6 and one has just been sold on here. The Pentax DOES NOT have the often pictured focus scale perspex window of the other makes HSM version. Shops show a generic photo of the HSM version and thus the confusion. Although there is no H...
Posted by wvbarnes on 25/06/2012 - 22:56
Pentax K-x and Celestron Ultima ED 65 spotting scope
Hi Ken, I have used an Acuter 80mm with a K-x attached. If the eyepiece is similar to this then under the rubber there is a T2 thread. The K to t2 adapter will screw on here and then the camera fixes to the adapter. You can then zoom in with the zoom on the eyepiece for the required picture. Soun...
Posted by Patty on 26/06/2012 - 20:02
Pentax K-x and Celestron Ultima ED 65 spotting scope
I did wonder what had happened with the person replying. Puters always seem to go wonky even when they are fine! As I said under the rubber is the T2 thread. This is actually a M42 thread, as is the old pentax /practika M42, BUT it is a different pitch. The T2 thread is 0.75 pitch and Camera Thre...
Posted by Patty on 29/06/2012 - 22:08
mirror lens or a 2x converter
Chalk and Cheese Both only worth using in bright conditions Tc is more flexible Both can be tricky to focus Mirror gives a unique bokeh when used well that you will either love or hate TC easier to get reasonable results with Bottom line - neither are perfect but both have their ...
Posted by fritzthedog on 29/06/2012 - 18:27
mirror lens or a 2x converter
A mirror can be challenging but ultimately rewarding and a tripod and patience are required because the DOF is tiny and you have to be precise with the focus. Catch in focus is a huge advantage on a Pentax DSLR. A TC adds glass which impacts your IQ unless you use good quality lenses with it. To g...
Posted by SteveEveritt on 29/06/2012 - 19:40
mirror lens or a 2x converter
Technique is a big variable when using lenses this long. I've just grabbed a couple of shots on this , the first with a Sigma 70-300 f/4-5.6 zoom at 250mm and a manual focus 2x TC, the second with my Tamron 500mm f/8 mirror. Both are focused manually, I can't remember if the 70-300 with the TC d...
Posted by johnha on 29/06/2012 - 23:20
mirror lens or a 2x converter
Thanks everyone tripod already sorted last Christmas new to DSLR after using my trusted Ricoh KR5 35mm slr for years. Traded it in couple of years ago for the K-m and only just started to use it and learn the multitude of settings available, when I get to the point of exceeding its capabilities w...
Posted by Redninja01 on 30/06/2012 - 07:08
Upgrade from Pentax 18-250mm (at wide end!)
Thanks again Nearly bought the 10-20mm on here a few days back, but got cold feet with the reviews. I'll have to keep looking!
Posted by milamber on 29/06/2012 - 18:37
Upgrade from Pentax 18-250mm (at wide end!)
The Sigma 10-20 F4-5.6 is a super lens. I use it almost exclusively when I'm shooting interiors (the 15 Ltd isn't wide enough). Great value for money but there is a noticeable amount of distortion that can not always be corrected in PP. Definitely sharp enough. PTlens can correct distortion when...
Posted by Frogfish on 30/06/2012 - 10:05
Upgrade from Pentax 18-250mm (at wide end!)
Just an update and to thank everyone for their help and advice. I'd decided on the 8-16mm, but then saw Rich's (maurisimo) post on the classifieds advertising his 10-20mm. I figured that I'd try it and even if I decide ultimately that I'd prefer the 8-16 I'm not going to lose out much if I re-sel...
Posted by milamber on 03/07/2012 - 12:38
Another M42 on my K-r
Flushed with success after the invaluable help I was given by Forum members when first using my old Helios 58mm f/2 lens but wanting something a bit 'wider' and closer to the 35mm film standard 50mm I have taken the plunge and bought an old M42 30mm lens off ebay. I watched the auctions for sever...
Posted by PeterKR on 29/06/2012 - 20:27
Pentax 100mm Macro - Non WR vs. WR
Sue and I both have the non-WR version and it's a fine lens. The WR version also adds a more circular diaphragm, which in theory improves the out of focus bokeh, but I don't know how significant that is. The lenses we have look fine and perform as well as any other macro lens we have ever owned. ...
Posted by johnriley on 02/07/2012 - 08:17
