- Super tele-photo focal length of 300mm (converting to 450mmm on a 35mm format)
- Max aperture of f/4
- 8 lens elements arranged in 6 groups including ED (Extra-low dispersion) element, Pentax Super Protect (SP) coating,
- 9 diaphragm blades
- Filter thread specification of 77mm
SMC 300mm f/4 ED(IF) SDM DA* series prime lens has a 35mm focal length equivalent of 450mm giving the photographer a super-telephoto reach, plus a constant fast focal length of f/4. It sports Pentaxs Quick Shift Focus system for smooth switch from Auto to Manual focusing and SDM focusing system for quiet focusing operation. 8 elements arranged in 6 groups make up the lens construction including ED (Extra-Low Dispersion) elements.
Sporting the ultra-quiet SDM autofocus and extreme weather-resistance, the DA Star 300mm, designed exclusively for PENTAX digital SLRs, is the perfect long lens for in-the-wild telephoto photography.
The smc PENTAX DA Star 300mm F4 ED (IF) SDM is a high-performance telephoto lens.
The PENTAX-original Quick-Shift Focus System allows instant switching from autofocus to manual focus operation.
The SDM focus system incorporated in this lens results in a smoother, quieter autofocusing operation using a built-in supersonic motor.
The focal length is equivalent to 450mm in the 35mm format.
The tightly sealed, weather-resistant and dust-resistant construction enhances durability for use in both rainy and dusty conditions, making the DA Star 300mm F4 ED (IF) SDM lens a perfect companion for the weather-resistant PENTAX DSLR bodies.
The PENTAX-original SP (Super Protect) coating repels dust, water and grease to keep your lens clean and your image quality at its peak.
The Extra-low Dispersion (ED) elements compensate for chromatic aberration.
Developed specifically for PENTAX digital SLR cameras.
ANGLE OF VIEW
NUMBER OF DIAPHRAGM BLADES
MINIMUM FOCUSING DISTANCE
55.2 inches (1.4m)
37.7 oz. (1,070g)
LENS APERTURE RING
Supersonic motor, Quick-shift focus, SP (Super Protect) coating, Filter window, Detachable tripod mount
8 elements in 6 groups
3.3 x 7.2" (83 x 184mm)
Included, demountable w/coin
300mm (equiv. 450mm)
- Rear Lens Cap B
- Lens Soft Case S120-210