2016年3月21日 · In-lens motors are considerably quieter than screwdrive; they also focus more smoothly and some operate more quickly. Some DA lenses are DC/SDM-Only (KAF3 mount), such as the SMC Pentax-DA* 55mm F1.4 SDM prime lens and SMC Pentax-DA 17-70mm F4 zoom lens. These lenses lack the traditional screw drive autofocus coupler and …

2024年11月30日 · This is a zoom lens. People need to be aware of that. You cannot compare prime lens with a zoom lens. For what it is this lens is fast durable solid build with large aperture. I have used it since 2010 and i never regret buying it. It is expensive but you get what you paid for.

Comprehensive listing of Pentax M42 Takumar screwmount lenses (Pentax M42 Screwmount Zoom Lenses - Reviews and Specifications - SLR and Interchangeable Lenses), featuring screwmount lens reviews and M42 lens technical data.

2025年1月19日 · The HD Pentax-DA 55-300mm F4.5-6.3 ED PLM WR RE is a compact, weather-sealed APS-C telephoto zoom lens featuring a retractable barrel design. This lens also debuts PLM (Pulse Motor) autofocus technology and an electromagnetic aperture diaphragm to facilitate smooth focusing and exposure adjustments during video recording.

2024年9月15日 · Then there would be a telephoto zoom lens sequence for FF = beginner / advanced / professional series (70-320 / f4,5-5,6 + 70-210 / f4 + 70-200 / f2,8) My recommendation to use at K1 if you need a long / optically decent / cheap lens. The look of the old used about 19 years with ebay lenses with a replacement hood:

2019年8月4日 · A classic "metal 'n glass" heavy zoom lenses from the late 1970s to early 1980s. There are several variants: it can be found as fixed mount (pic 1) , and with swappable T4 mount (pic 2). The 17xxx/16xxxx serial numbers indicate it was made by Tokina - in fact it can be found as a Tokina auto tele-zoom.

The zoom lenses below can be used with both Film and Digital Pentax SLRs. They cover the full-frame 24x36mm image circle. These are the original lenses released for the Pentax K-mount system. They are commonly referred to as "K" lenses, and as branded as "SMC Pentax". Manual-focus; Manual-aperture (aperture ring available) Film & Digital

2024年4月1日 · Very nice manual zoom lens. Maximum aperture is f/4 and it is constant through whole focal lengths (80 to 200mm). Very sharp at f/8, but can be slightly soft at both extremes (f/4 and f/22). Some purple fringing is visible at high contrasts using wide aperture (f/4), but this is easily correctable in PP.

2024年6月25日 · Introduced in 2020, the HD PENTAX-D FA 70-210mm F4 ED SDM WR is a much lighter option for a telephoto zoom than the HD Pentax-D FA* 70-200mm F2.8 zoom. The new lens weighs in at just 891 g (28.9 oz), whereas the D FA* F2.8 lens weighs in at 1755 g (61.9 oz). To bring the weight down the new lens is one stop slower than the D FA*.

2023年11月27日 · First Zoom lens recommendation? BruceBanner: Pentax SLR Lens Discussion: 19: 03-22-2016 04:38 PM: wide angle zoom recommendation: avichais: Pentax SLR Lens Discussion: 9: 10-06-2012 09:51 AM: Zoom Lens Recommendation for Award Banquets: marianne718: Photographic Industry and Professionals: 11: 11-22-2009 10:15 AM: Need a recommendation for tele ...