sigma 300 f 4 pentax

AF 2X 4 Element - Pentax AF The PROMASTER 2x Autofocus Teleconverter is compact and lightweight and adds photographic versatility without the expense of an extra ...  more

Select the extra wide 19mm view, with over 90 degree coverage, for dramatic architectural shots and large groups in confined quarters. Zoom to 28mm very wide and ...  more

Visit our eBay Store: Helix Camera Helix CAMERA MOUNT ADAPTER - for 4/3 Lens Mount to Micro 4/3 NEW PR5870 This lens mount adapter allows you to mount a 4/3 Lens on ...  more

This is the definitive lightweight, compact telephoto macro zoom with a maximum magnification ratio of 1:2 at the 300mm setting -- ideal for shooting subjects that ...  more

PROMASTER's has always strived to have the ideal zoom lens for the avid photographer. As a result, we have introduced our high-power zoom lens in the new AF18-200mm ...  more

This powerful 10X optical dome loupe is perfect for inspecting fine detail in photographs. It is also suited for many other applications such as inspecting stamps ...  more

The Auto Focus converter lens will have the effect of multiplying your local length by 0.65 times. In other words, you will be able to get over 40% more of the ...  more

ProMaster 100mm Macro f3.5 Minolta MD Manual Focus Lens (3390)  more

Promaster 55-200mm Digital XR EDO Aspherical AF Lens, for Nikkor  more

This is the definitive lightweight, compact telephoto macro auto focus zoom lens -- ideal for shooting subjects that are difficult to approach such as sporting and ...  more

Specifications: Enhanced Digital Optic Design Lens Construction: 15 Elements in 13 Groups Lens Coating: Multicoated Angle of View: 75-7° Minimum Aperture: f/22 ...  more

Today's digital SLR's have more precise requirements than traditional film cameras. The anti-aliasing filter and silicon based CCD and CMOS sensors in digital SLRs ...  more

Promaster lenses are only available thru specialty PRO dealerships, and you will not find this lens anywhere. Designed to fit the old style Canon bayonet mount SLR ...  more

The PROMASTER 11-18mm Digital XR EDO lens designed for use exclusively on Canon and Nikon Digital SLR cameras having an APS-C sized sensor. This lens gives the ...  more

This camera allows you to focus and set the exposure yourself. A built-in meter help with exposure control. Other features that this camera has that are missing ...  more

Today's digital SLR's have more precise requirements than traditional film cameras. The anti-aliasing filter and silicon based CCD and CMOS sensors in digital SLRs ...  more

The AF 28-300mm XR EDO zoom covers the largest focal length range of any of the wide angle to telephoto lenses. Whether you shoot film or digital, the lens provides ...  more

PROMASTER 5000 Series FTM modules allow for TTL, fully automatic, and manual operation with manual focus SLR cameras. The FTM module works on ANY PROMASTER 5000 ...  more

PROMASTER 5000 Series FTA modules allow for TTL, fully automatic, and manual operation with auto focus SLR cameras. It also features an infrared focusing assist ...  more

.Lens Construction: 12 Elements in 16 Groups.Angle of View: 34-12.5 degrees.Minimum Focusing Distance: 3.6.Weight: 12.1 oz..Filter Size: 49mm  more