Printable lens sharpness test chart?

[garry71]

Are there any test charts you can print yourself to test sharpness for a lens?
And is there one which can check for if the focus point is too near or far from where it should be?

Thanks a lot
Garry

 

[Yellowbelly]

There is a very good test pattern here

http://www.northlight-images.co.uk/article_pages/cameras/1ds3_af_micoadjustment.html

which must be used on screen as it uses moire patterns generated by pixel interference.

 

[Stratman]

To check the focus, place a 12" ruler on its edge (use blue tack or similar) at 45 degrees to your camera and carefully focus on the 6" mark. Examine the results and it will tell you if you're focussing near or far, or hopefully even spot on.

 

[POAH]

take real world pictures

 

[Ploddles]

take real world pictures

 

[garry71]

There is a very good test pattern here

http://www.northlight-images.co.uk/article_pages/cameras/1ds3_af_micoadjustment.html

which must be used on screen as it uses moire patterns generated by pixel interference.

Thanks, I'll try it out tomorrow.

To check the focus, place a 12" ruler on its edge (use blue tack or similar) at 45 degrees to your camera and carefully focus on the 6" mark. Examine the results and it will tell you if you're focussing near or far, or hopefully even spot on.

I'll try this one tomorrow as well, ta.

take real world pictures

I've already tried that one, and they all look a bit too soft

 

[farrance]

Go into jessops or LCE and test it out yourself. They're photographers just like you in there, so they'll help you try out some cool glass.

 

[POAH]

they are either soft, your expectations are too high, you've not sharpened enough either in camera or from RAW, our shutter speed is too slow, your ISP is set too high, your noise reduction is too high.


what camera and lens are we talking about here and are you shooting raw or jpeg?

 

[POAH]

Go into jessops or LCE and test it out yourself. They're photographers just like you in there, so they'll help you try out some cool glass.

not seen a photographer I jessica before lol

 

[HoppyUK]

To check the focus, place a 12" ruler on its edge (use blue tack or similar) at 45 degrees to your camera and carefully focus on the 6" mark. Examine the results and it will tell you if you're focussing near or far, or hopefully even spot on.

That is almost guaranteed to give a flase result. The target must be flat and square to the camera, and shot at a sensible distance, eg 25x focal length at least.

 

[hollis_f]

That is almost guaranteed to give a flase result. The target must be flat and square to the camera, and shot at a sensible distance, eg 25x focal length at least.

Yup.

Here's an excellent test chart - LINK.

 

[garry71]

they are either soft, your expectations are too high, you've not sharpened enough either in camera or from RAW, our shutter speed is too slow, your ISP is set too high, your noise reduction is too high.


what camera and lens are we talking about here and are you shooting raw or jpeg?

I think I'll start another thread for this, cheers.

Thanks for the replies all.