Announced Sep 13, 2006 •
10 megapixels | 2.5″ screen | APS-C sensor
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I want to get an all-around zoom for shooting in conditions where I don't want to change lenses. I'm looking at the Sigma 18-250mm f/3.5-6.3 DC Macro and the Pentax smc DA 18-270 f/3.5-6.3. I have Pentax k100 and k10 and soon a k3II, so was leaning toward Pentax figuring same maker, better compatibility. But learned that it is actually made by, I think, Tamron. So now I wonder if that makes compatability a non-issue. Otherwise, specs, reviews and comments are similar, and Sigma is $100...
Hello guys, I am new to dslr and these photography stuffs. I just bought Nikon D5600 camera(Used Pentax K10D before). I have a Sigma 70-300mm Apo DG lens, and I tried to mount it on d5600 but it won't mount.I am afraid to force mount it. How do I know if the Sigma lens is compatible to d5600?I read some reviews and I found out that sigma 70-300 and nikon d5600 is compatible. Thank you :D
By: Viernes (7 months ago)
I'want to to buy an old (in technology years) Pentax DSLR to use my old M42 50mm Super Takumar (it's from a Spotmatic, the very first camera I ever had). I only need one dial to control the shutter speed, as I'll control the aperture right from the lens. I was thinking something along the lines of the "old cheap reliable workhorse", maybe a Kr or Kx. Is there any limitation regardless metering, or something? I already have a high end Pentax, but I want the "new-old one" to be attached to the...
I got an old set of manual extension tubes and wanted to give them a try in combination with my Samyang 85/1.4 - which is a great lens, but can only focus down to 1 m. Wanted to have a look at its hidden macro capabilities ... :) So I got my manual PK extension tubes out; they have both the aperture control lever (for stopping down the aperture during exposure and for DOF preview) and the aperture simulator - not used on the digital DSLR line. But I had to discover that you can't stop down...
I have just downloaded and installed DCU 5.6.1. I usually develop my RAW photos with Lightroom, but from time to time I also use DCU. To my surprise, it seems that Ricoh-Pentax has apparently dropped PEF support, as I cannot open PEF files from my former *ist DS or K10D with this updated version of their software. Now I use DNG on my K-7 and K-S2 bodies, but even some PEF shots taken with the K-7 cannot be open with DCU 5.6.1 Has Ricoh dropped PEF support intentionally or is it a bug? Or...
Sigma Zoom Master 35-70mm f2.8-4 or here Lately got a chance to buy this lens for small money. Knowing nothing about this old goody I thought I´ll give it a try on my trusty old K10D. Here two samples of what it produces mounted at the K10D : 70mm / f 5.6 Not a superfast and automatic lens, it still looks well built and gives the feeling of old time shooting style, but I wasn´t not looking for an all automatic fast lens. I think for really small money (~ 30,- to 40,- €) one can get...
By: Peter van Baarle (Jul 13, 2016)
Hi there, I recently purchased a K-S2 body, and am trying it out with my lens collection. For some reason, my Sigma 50-200 4-5.6 HSM acts weird. It sometimes works, but very often it won't focus, and the indications in the viewfinder go berzerk. The lens works flawlessly on my Samsung GX-10 (Aka Pentax K10d), and all my other lenses work fine on the K-S2 (although the Sigma is the only one with a built-in focus motor) Anyone experienced something similar? Regards, Peter.
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