limit characters captcha

[alejandromry]

Help please indicate I am just the number of characters to 4 numbers the CAPTCHA, my users complain about over and make many mistakes.
Thank you for the valuable assistance of you

[Jan]

Hi, sorry I don't understand?

[alejandromry]

I am of Colombia, I am not very good at writing in English.
My mother tongue is Spanish, I use a translator in line for the help.
I would like to know whether the numbers of characters can be limited to 4 in captcha.
6 Characters appearing hinder my visitors send comments.
I understand the philosophy of 6 characters, is more security.
My visitors seem annoying because much fail to validate.

Thanks you for help.
Hola soy de Colombia, yo hablo español, y utilizo un traductor en linea para traducir a ingles, disculpeme si la traduccion no es correcta, yo deseo conocer si se puede limitar el numeros de caracteres a 4 en el captcha, aparece siempre seis caracteres. estos cantidad le crea dificultad a mis visitantes porque no logran validar el envio rapidamente.
Gracias por la ayuda que me entreguen.

[Jan]

Hi, no there is no such option, you can only set the characters which will be displayed in the captcha, e.g. you will only display numbers or lower case characters, etc.

Jan