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Well, then the "standard font" digits (numerical values) are 4mm high and the "small font" digits are 2.4mm high.

@Ralph: Yes, it's about whether to consider buying an OSTC.

In the mean, I grabbed the sources (uh small PIC are sooo ugly) and find for the "small" font these equates:

aa_font28_height EQU .24
aa_font28_width EQU .14

This looks more plausible than "24px hight x 28px width".

I also scaled some ...

would you mind to check whether the box is really 24px high and 28px wide which I consider "unusual"? Could it be you switched height and width?

Even more interesting would be:
* The digit size in mm
* Reports from people >50 whether they can read everything without lenses

Thanks for the information.

Is the character box really wider than high ? Usually it's vice versa!

Assuming square LCD pixels, I calculate from the specs a pixel pitch of 63mm/sqrt(320²+240²), IOW 0,158mm or 6.35px/mm. Is this correct?

Then 24x28 would be a 3,78mm x 4.4mm character box. Still ...

Hi,

what is the approximate character size of the smallest numbers on the screen (e.g. temperature, @+5 time) with the default layout?

Thanks for the information, I'll wait this feature in the Sport version.

Regarding "typical cabin pressure": Using such a pressure may allow an earlier flight, but there is a certain (yet low) probability of a pressure loss resulting in much lower ambient pressure.

The oxygen masks will keep the ...

Hi all,

is it correct that the OSTC currently doesn't indicate the current safe travel altitude (or lowest air pressure) in surface mode?

This would be very useful if I have to travel over a high pass after diving: I would like to know when it is safe to go up to the needed altitude, e.g 1500m ...