Comprehensive Pentax Lens Guide - Gear Guides
2016年3月21日 · Pentax DSLRs also support in-camera lens corrections (vignetting, distortion, etc.) for DA lenses. DA lenses do not have aperture rings, as DSLRs can control the aperture setting electronically. A key new feature launched with the DA series is quick shift , or the ability for the user to manually override the focus setting at any time simply by ...
Pentax Lenses - Pentax Lens Reviews & Lens Database - Pentax …
If you are looking for Pentax lens reviews or technical specifications, you've come to the right place! This is a comprehensive database of user reviews of Pentax interchangeable SLR lenses, complete with information on every Pentax lens ever produced from K-mount (digital and film) to mirrorless to medium format. See also our in-depth lens ...
The 5 Lens Autofocus Drive Types Explained - Articles and Tips ...
2018年8月19日 · The 5 Lens Autofocus Drive Types Explained Pentax AF technologoy overview and comparison By beholder3 in Articles and Tips on Aug 19, 2018. Camera lenses today use many different technologies to facilitate autofocus. Under the hood, there needs to be some way for the camera to move elements inside the lens, which in turn changes what's in focus.
dust mites on camera lens! - PentaxForums.com
2010年11月9日 · so I pulled out the macro lens and took a look put the lens in the freezer to kill the bugs, when i took it out I could see a dead bug on the lens cap so i thought i'd get in a bit closer with the macro lens and a reversed 28mm (which I think makes the magnification about 4:1, with a working distance of 1")
Can a UV lamp kill fungus and make the lens safe for use? - Pentax …
2014年11月13日 · Hand sanitizers when you're out and about also help. Also avoid handling your equipment after eating greasy or salty foods such as fried chicken or french fries. These substances can damage the electronics encodings on your camera. 2: never blow on your lens with your mouth. Your mouth has two elements that are not desirable on your lens.
Sears Auto Multicoated 135mm F2.8 Lens Reviews - Pentax Forums
2020年12月15日 · I have this lens left over from my film days with the Sears version of (I think) K-1000 camera. I travelled the world with this camera and lens for nearly 15 years, but mainly used the 50 mm lens, not this 135. I have not used it very much in digital days because the field of view is a little too narrow for most of my work.
Pentax Forum - Camera & Photography Community
2024年1月15日 · PentaxForums.com is the premier community for Pentax camera users! We feature a friendly forum, in-depth reviews, Pentax news, lens reviews, and more!
Guide: DSLR Lens Resolution Testing at Home - Pentax Forums
2017年9月21日 · Using out-of-camera JPGs with well documented settings you can compare your lens + camera combo results more objectively with other users around the world; The Big Caveat. You can not compare your absolute figures to any test site's figures. They use different software and different setups.
Vivitar (komine) Auto Telephoto 135mm F2.8 Lens Reviews
2024年9月15日 · This lens is nice, not too large for a tele, although I don't have much experience in other 135mm lenses! It's pretty sharp, although I cannot seem to configure the K5ii to take advantage of it. Straight out of the camera, it gives a somewhat blueish tone to the images and the colors look very flat.
Attachment for cell phone to use real camera lens
2023年12月24日 · The advantage of such attachment over the phone own lens is on the tele side, a real tele instead of digital zoom. Of course that does not replace your real camera, but you can have far reach with a small tele and much brighter so good for low light.