Telephoto focal length

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Lens mount

Pentax K Lenses for less than $500 that have a 100mm or longer focal length

#1	Pentax SMC DA 18-135mm f/3.5-5.6 ED AL DC WR

Max focal length	135 mm	Min focal length	18 mm

Zoom range	7.5x	Length	76 mm

Auto focus	Yes	Diameter	74 mm

Aperture	f/3.5	Weight	405 g

See 35 sample photos taken with the Pentax SMC DA 18-135mm f/3.5-5.6 ED AL DC WR

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

Max focal length	300 mm	Min focal length	55 mm

Zoom range	5.5x	Length	112 mm

Auto focus	Yes	Diameter	71 mm

Aperture	f/4	Weight	466 g

See 50 sample photos taken with the Pentax SMC HD Pentax-DA 55-300mm f/4-5.8 ED WR

#3	Pentax SMC DA FA 100mm f/2.8 WR Macro

"It is light weight, very smooth, very sharp images" bhphotovideo.com

Max focal length	100 mm	Min focal length	100 mm

Zoom range	1x	Length	64 mm

Auto focus	Yes	Diameter	81 mm

Aperture	f/2.8	Weight	340 g

See 9 sample photos taken with the Pentax SMC DA FA 100mm f/2.8 WR Macro

#4	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

Max focal length	200 mm	Min focal length	50 mm

Zoom range	4x	Length	79 mm

Auto focus	Yes	Diameter	69 mm

Aperture	f/4	Weight	286 g

See 19 sample photos taken with the Pentax SMC DA 50-200mm f/4-5.6 ED WR

#5	Rokinon 135mm f/2 ED UMC Pentax K

	Wide aperture
	f/2

Max focal length	135 mm	Min focal length	135 mm

Zoom range	1x	Length	n/a

Auto focus	No	Diameter	n/a

Aperture	f/2	Weight	0.8 kg

#6	Samyang 135mm f/2 ED UMC Pentax K

	Wide aperture
	f/2

Max focal length	135 mm	Min focal length	135 mm

Zoom range	1x	Length	121 mm

Auto focus	No	Diameter	82 mm

Aperture	f/2	Weight	0.8 kg

#7	Sigma 18-300mm f/3.5-6.3 DC MACRO HSM Contemporary Pentax K

Sigma 18-300mm f/3.5-6.3 DC MACRO HSM Contemporary Pentax K

	Great zoom range
	16.7x

Max focal length	300 mm	Min focal length	18 mm

Zoom range	16.7x	Length	102 mm

Auto focus	Yes	Diameter	79 mm

Aperture	f/3.5	Weight	0.6 kg

#8	Sigma 18-250mm f/3.5-6.3 DC Macro HSM Pentax K

Sigma 18-250mm f/3.5-6.3 DC Macro HSM Pentax K

	Great zoom range
	13.9x

Max focal length	250 mm	Min focal length	18 mm

Zoom range	13.9x	Length	89 mm

Auto focus	Yes	Diameter	74 mm

Aperture	f/3.5	Weight	472 g

See 48 sample photos taken with the Sigma 18-250mm f/3.5-6.3 DC Macro HSM Pentax K

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Pentax K Lenses for less than $500 that have a 100mm or longer focal length

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