checking sharpness of lens

Duinchlfc · 15th May 2008

Hi there,i need you guys expert opinions.I plan on getting a ef 70-200 2.8.But how i ensure i get the best possible sharpness from the lense in the store? how to i check or what not? Cheers

Duinchlfc · 15th May 2008

bump for the day

ArcticFox · 15th May 2008

At the shop, request them to give you two other copies, choose the best one. Not sure if most shop allows.

Else, zoom out test the biggest aperture and f8 or f11 then zoom in, do the same thing.

That's how I do.

Duinchlfc · 15th May 2008

Originally Posted by ArcticFox

At the shop, request them to give you two other copies, choose the best one. Not sure if most shop allows.

Else, zoom out test the biggest aperture and f8 or f11 then zoom in, do the same thing.

That's how I do.

thanks!

rendition · 15th May 2008

You'll prolly need to bring a portable DVD player or notebook to see the image for checking and comparison. You won't be able to distinguish the difference (Not that I know anyway) from the LCD on the camera itself - not even on the largest LCD which todate is 3-inch.

...of course you can always save the image onto your CF card and bring home to check, just take note of the serial number of the lens you try.

15th May 2008	#1
Duinchlfc Member Join Date: Aug 2006 Location: Sengkang Posts: 624	checking sharpness of lens Hi there,i need you guys expert opinions.I plan on getting a ef 70-200 2.8.But how i ensure i get the best possible sharpness from the lense in the store? how to i check or what not? Cheers

15th May 2008	#2
Duinchlfc Member Join Date: Aug 2006 Location: Sengkang Posts: 624	Re: checking sharpness of lens bump for the day

15th May 2008	#3
ArcticFox Member Join Date: Jun 2007 Location: 1°25'10.16"N 103°50'11.01"E Posts: 619	Re: checking sharpness of lens At the shop, request them to give you two other copies, choose the best one. Not sure if most shop allows. Else, zoom out test the biggest aperture and f8 or f11 then zoom in, do the same thing. That's how I do. __________________ 400D 18-55 50 430EX "Your first 10,000 photographs are your worst" -Henri Cartier-Bresson

15th May 2008	#5
rendition Member Join Date: Jan 2008 Location: Singapore Posts: 1,382	Re: checking sharpness of lens You'll prolly need to bring a portable DVD player or notebook to see the image for checking and comparison. You won't be able to distinguish the difference (Not that I know anyway) from the LCD on the camera itself - not even on the largest LCD which todate is 3-inch. ...of course you can always save the image onto your CF card and bring home to check, just take note of the serial number of the lens you try. __________________ // visualverve // gear / visuals Last edited by rendition; 15th May 2008 at 07:28 PM.