Testing SIGMA 18-50 f 2.8-4.5 DC OS HSM with my PENTAX K30

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So here a simple TEST about SIGMA OS System with SR (Shake Reduction) of my amazing Pentax K30,I had found it in a store with the box coverd by dust,this is  a UNDERRATED and Almost UNKNOW amazing lens made by SIGMA ,the focal is 18-50 f 2.8-4.5 nicely sharp with a nice Price(199€) and a not constant aperture at f 2.8(50 mm f 4.5) much better than any kit lens that PENTAX can provide.This Lens has OS System that could perform well with the inner and sensor Shake Reduction system of K30.Shame on Pentax that are selling with price out of market f 2.8 lenses…16-50 f2.8 more than 1000$ what the hell are you trying to do,legal robbery?

BELOW 3 PHOTOS THAT CAN HELP UNDERSTAND WHAT I’M TELLING HANDHELD MODE FOCAL 20 MM

f 2.8 1/8 SR OFF OS OFF

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f 2.8 1/8 SR OFF OS OnIMGP2413cut

f 2.8 1/8 ISO 1600 SR On OS OnIMGP2414cut

SECOND TEST H A N D H E L D

20 mm +0.3 EV ISO 800 f2.8 0.3″ (1/3) SR On OS OFF

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20 mm +0.3 EV ISO 800 f2.8 0.3″ (1/3) SR OFF OS On

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20 mm ISO 800 f2.8 0.3″ (1/3) SR OFF  OS OFF

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20 mm ISO 800 f2.8 0.3″ (1/3) SR OFF  OS On

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20 mm ISO 800 f2.8 0.3″ (1/3) SR On  OS On

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20 mm ISO 800 f2.8 0.3″ (1/3) SR On OS OFF

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20 mm ISO 800 f2.8 0.3″ (1/3) SR On OS On AUTOFOCUS OFF-MANUAL MODE

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TEST on FIELD

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IMGP2645This lens work great on AF-C mode,highly-recommended.

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