# Thread: Aperture settings for max sharpness

1. ## Re: Aperture settings for max sharpness

Originally Posted by BhLoAlCeK
sharpness is overated? well since i am on this topic, is this lack of sharpness something that is correctable in pp?
Sharpness is highly subjective and there's a whole bunch of contributing factors to consider before you can conclude if its sharp enough for you. The perception of sharpness can be influenced by the AA filter in cameras. In this instances, sharpening of the image in the post editing workflow is absolute necessary to enhance the image.

Flat, non-contrasty lighting can also affect your judgement on sharpness so in this case, you just have to wait for better light or adjust the contrast / colour later.

Then of course, there's the infamous hand shake that induces movement blur. That can't be saved.

The list goes on.....

2. ## Re: Aperture settings for max sharpness

allright.... just tried out some of u guys' tips and realised that the sweet spot of around f/6 is indeed as sharp as it can go..

i guess anymore and it's the lens. Will use pp to practise sharpening too!

3. ## Re: Aperture settings for max sharpness

Originally Posted by yyD70S
2 stops down is f/3.5
Sorry I am abit confused... can explain abit? Or point me to a site or link? Thanks..

4. ## Re: Aperture settings for max sharpness

Originally Posted by Anson
Sorry I am abit confused... can explain abit? Or point me to a site or link? Thanks..
Looks like you need help on your basics.

One simple way is to scroll your aperture dial and you'll see why.

This is the mathematical representation.
(square root 2)^1.666667 = 1.8 (approx)
Hence if you want 2 full stops, 1.666667 + 2 = 3.666667
(square root 2)^3.666667 = 3.5 (approx)

5. ## Re: Aperture settings for max sharpness

Originally Posted by gymak90
Looks like you need help on your basics.

One simple way is to scroll your aperture dial and you'll see why.

This is the mathematical representation.
(square root 2)^1.666667 = 1.8 (approx)
Hence if you want 2 full stops, 1.666667 + 2 = 3.666667
(square root 2)^3.666667 = 3.5 (approx)
Thanks for the math lesson...

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