What is the minimum and maximum f-stop on this Pentax K-50 lens? Thanks
1140704
The min and Max f stop are listed in the description.. F3.5 to F5.6... But it also depends on your focal length or iso... It can be up to f22 at 55mm
1140705
It depends on the focal length. At 18mm, you get from F3.5 to 22. At 55mm, you get F5.6 to 40.
1140706
The f-stop is dependent on the lens not the camera. Additionally, on a zoom lens the f-stop will change as the focal length changes. The SMC Pentax DAL 18-55mm zoom has a maximum f-stop of 3.5 decreasing to 5.6 for maximum zoom.
2106691
I have my K-5 II in front of me with the SMC Pentax DA 18-135 mm lens attached. I just checked the apertures. At 18 mm, the range is from f 3.5 to f 22. At 135 mm, the range is from f 5.6 to f 40.
608745
I have both for my Pentax K-5iis. The 17-70mm practically stays on my camera as I find I need it for its macro abilities as well as the extra reach. I suggested it to a friend who owns a Nikon when she was ready to upgrade from her kit lens and she loves it. I don't feel like f/4 at the longer end of the 17-70mm is limiting for most of my images. I use it outdoors shooting various subjects and indoors at concerts every week. I use the 17-50mm mainly during school classroom events because of its f/2.8, but always wish it had more zoom.
812303
Thanks very much for your advice.Any recommendations for a fast 50 or 30 mm prime lens?
1532033
If you're using on the APC-S type sensor (i.e. like on the Sony a6000) there will be a crop factor of about x1.5 (so this is equivalent to about 45MM --> 30 * 1.5) - oops - looks like this was already answered below. Great lens - not as sharp as I was expecting in low light - for which situation you're better off with Sony's 50mm f/1.8).
606473
I would recommend a 50mm lens that is faster. Say an F1.8 or so. F 3.5 is a bit slow for low light. You can ramp up the ISO sensitivity to compensate, but you increase noise too. The trade off so to speak.
357025
I believe it will only auto focus up to 5.6 f stop. Sorry I just don't know any more.
117623
I didn't, but there is no reason not to work on K50. All Pentax lenses fit on all Pentax cameras. I use it on K20 K5 and K5II - very sharp lens. It allow you to focus manual with-out to switch, and then it do the rest automatically.
1435515
I only see one lens listed here Michael, the DA 18-55mm f/3.5-5.6 AL which is Weather Resistant [WR on lens]. It is a superb zoom lens for the cost. Certainly an excellent choice whilst saving for a more remarkable lens in the the Pentax line. The camera's cost is itself is outstanding, as the K-5 will continue to amaze with each new lens. Note: If you already own some fine Pentax optics you might consider exchanging the value of the "kit" lens for a battery grip!
722163
Not too sure. Recommend you get the lens technical spec from the Pentax website.
2102761
Go with the Pentax DA 50mm f1.8. On the cropped pentax sensor, its equivalent to a ~85mm. If you are looking for a "normal" lens get something between 30mm and 35mm.
449342
This lens works great at F8 or more. Hand-holding is possible if you have good technique.I have tried using TC's on this lens, but to be honest, you are better off not bothering. If you want a bit more reach, get closer to your subject and use an extension tube. For some sample images, check out the recent section of my website www.nicksaundersnature.com
717430
You need to be very careful about your lens mount. The wrong one could destroy the contacts for your automatic lenses. This converts the Pentax K-mount to the Nikon F-mount and makes your camera a manual operation only. There are no auto features to the Pentax lens with the adaptor.
1551101
That is exactly why I purchased this lens and I love it! The focus is a bit soft if you try and go below f2.2, but as I'm generally shooting moving children I usually keep it around f2.5 or 2.8 anyway. Hope this helps!
1443805
I own the lens it works perfectly on my pentax k30 and should work perfectly on the pentax k50. I am not sure what compatibility check would claim it does not work on the k50. The lens at f1.8 is fast, it is inexpensive, it is sharp and is a my favorite lens for portraits.
1396436
Is this lens compatible with my PENTAX K100D SLR? Will the auto focus work? Will I be able to use the scene function of my camera?
1361466
Hi, may be is a mistake, I have my Pentax K-3 with this lens works perfectly