Gamma

I’m curious as to how many of you use the retina-burning 1.8 Mac
Gamma default setting as opposed to changing it to something in the
2.2 area? I’m aware of the gamma differences for print and web design
but for general daily browsing use what’s your preference?

Todd


offtopic mailing list
email@hidden
Update your subscriptions at:
http://freewaytalk.net/person/options

I don’t mess with the gamma, but I do change the white point to D50.


offtopic mailing list
email@hidden
Update your subscriptions at:
http://freewaytalk.net/person/options

Sometime around 28/1/08 (at 11:23 -0600) Todd said:

I’m curious as to how many of you use the retina-burning 1.8 Mac
Gamma default setting as opposed to changing it to something in the
2.2 area?

Leading question? :slight_smile:

Retina-burning means that your brightness is set too high, not that
your gamma is incorrect. Strictly speaking, gamma is the differing
response of electron gun beams in a cathode ray tube to different
imput voltages. But rather than bore you with the details here, I can
do it at Gamma Explained instead!

This gives you the science, the maths, and also the reason why PCs
(and TVs) use a gamma correction of 2.2 and why Macs use 1.8.

Anyway, as someone who designs for print I use a gamma setting of
1.8, as should anyone else with similar work and a calibrated and
profiled display. There: a leading answer! :wink:

k


offtopic mailing list
email@hidden
Update your subscriptions at:
http://freewaytalk.net/person/options

Thanks. I understand why they differ (I’ve read waaayy too many articles on that very dry subject), it’s just that on a recent visit to the Apple store some darker colored sites (not black) looked washed-out and excessively bright and bad. Out of curiosity I switched the gamma and they looked much better. Since they don’t calibrate them for store use I wondered how many people end up using the stock settings without giving it a second thought. I also wonder why Apple even ships with a default 1.8 when even they recommend using 2.2 in most cases.

Anyway, unless it’s specifically print-related I prefer using 2.2 for general browsing. Just curious, that’s all.

Todd

On Jan 28, 2008, at 3:00 PM, Keith Martin wrote:

http://www.thehelpful.com/gammaexplained.html

This gives you the science, the maths, and also the reason why PCs

(and TVs) use a gamma correction of 2.2 and why Macs use 1.8.

I use Gamma toggle from http://www.thankyouware.com/gammatoggle.html to toggle between a calibrated profile, Mac gamma and PC gamma, when building sites. Its a big help when choosing web colours.

On 28 Jan 2008, at 17:23, Todd wrote:

I’m curious as to how many of you use the retina-burning 1.8 Mac

Gamma default setting as opposed to changing it to something in the

2.2 area?

David Owen
Freeway Friendly Web hosting and Domains ::

http://www.printlineadvertising.co.uk/freeway
http://www.ineedwebhosting.co.uk

Now that PC and Mac alike are using flat screens, how does this issue of PC / Mac gamma relate to flat screen across platforms?


offtopic mailing list
email@hidden
Update your subscriptions at:
http://freewaytalk.net/person/options

Sometime around 29/1/08 (at 11:51 +0000) David Owen said:

I use Gamma toggle from ThankYouWare: GammaToggle Page
to toggle between a calibrated profile, Mac gamma and PC gamma, when
building sites. Its a big help when choosing web colours.

Gamma Toggle is good, but…

If you switch the gamma then you are no longer working with a
correctly profiled display. If you are serious about colour accuracy
then you should make profiles with both gamma settings every time you
update the display’s profile. Which should be every fortnight. (Do it
every time your MacUser subscription comes through the door! :wink:

k


offtopic mailing list
email@hidden
Update your subscriptions at:
http://freewaytalk.net/person/options

Sometime around 29/1/08 (at 07:07 -0500) dwn said:

Now that PC and Mac alike are using flat screens, how does this
issue of PC / Mac gamma relate to flat screen across platforms?

Gamma correction was (and is) done to fix the non-linear response of
electron beam signals in cathode ray tube displays. As such, it could
be considered to be irrelevant, technically speaking, with LCD
displays.

However, it still represents a standard way to define and control the
relative changes in rendered brightness values of a display across
tonal ranges, however it works. As such, it remains useful - although
technically not really ‘gamma’ control any more.

k


offtopic mailing list
email@hidden
Update your subscriptions at:
http://freewaytalk.net/person/options