I don't quite understand what you mean... why can't you 'extend to full zoom to use flash photography as it is using 5.6 after half way through'? Did you mean you wanted an aperture less than 5.6 eg 3.5, at full zoom with the kit lens? This is of course a limitation of the lens itself and has nothing to do with whether the flash is used or not.selamatlzh said:I just want to share my experience with lens which has aperture size more than f4.5.
You will have BIG problem using flash. Before I am using the kit lens, I cannot extend to full zoom to use flash photography as it is using 5.6 after half way through. In the end I have to use my 40-150 and it works well. At 150mm and f4.5, I am still be able to get decent light, 45mm at f5.6 on the kit lens is unusable.
IF you are planning to use under lighted condition, 18-180 will be good.
And what did you actually mean when you say that '45mm at f5.6 on the kit lens is unusable'. :dunno: