Hi, is it ok to make small caps iota (I) with the dot on top? I know it is not commonly used but is a distraction?
Small caps follow the design of upper case letters.
I am not aware of any iota with dot accent. Where do you saw it? This may be not a distraction but a less known diacritic combination. It would be interesting to know about it.
Also note iota is found in Latin, Greek and Cyrillic scripts, being a diferrent character in each one (with different Unicode codification).
I know some display faces include design elements from lower-case letters in their upper case.
Sometimes it's traditional - an uppercase U that looks like an enlarged lowercase U is found in a number of oldstyle faces.
Other times, one is dealing with faces that seek to obtain a unicase effect, analogous to the lowercase of Peignot, for example. But while that is "OK" in the sense of being accepted, it is also distracting - so it's done only in intentionally extravagant display faces.
Think of Jazz Gothic from Canada Type, for example.
Thanks for the answers, I saw it right here http://www.myfonts.com/fonts/linotype/ginkgo/ just look at the small caps and there it is an iota with dot. And it is not a display typeface so it's really odd.
That's a different character: in Turkish, i with dot and i without dot are different letters.http://en.wikipedia.org/wiki/Dotted_and_dotless_I
If you intend your font to support the Turkish language, you need both forms. If not, it would be very confusing to use the dot above I.