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A telephoto shot of a lion

Pentax K Wildlife lenses for less than $500 that have a generic focus motor, have a 100mm or longer focal length and have a f/4 or faster aperture

#1

Pentax SMC HD Pentax-DA 55-300mm f/4-5.8 ED WR

Pentax SMC HD Pentax-DA 55-300mm f/4-5.8 ED WR
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Max focal length 300 mm
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Length 112 mm
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Aperture f/4
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Weight 466 g
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Focus motor Generic motor
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Diameter 71 mm
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Zoom range 5.5x
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Min focal length 55 mm
#2

Pentax SMC DA 50-200mm f/4-5.6 ED WR

Pentax SMC  DA 50-200mm f/4-5.6 ED WR

"This lens is a great fast focusing, sharp lens. I have been using this lens to take bird photos for the last few weeks and it does a marvelous job. The greatest advantage of this zoom is its size. It breaks down to being only a 1/4 inch longer than my 18-55 zoom kit lens. I also like that is allows manual focus with AF on." bhphotovideo.com

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Max focal length 200 mm
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Length 79 mm
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Aperture f/4
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Weight 286 g
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Focus motor Generic motor
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Diameter 69 mm
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Zoom range 4x
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Min focal length 50 mm