hello! obviously a newbie here....that's why i'm posting on the newbies corner.....
i'm currently using a second hand 400D body (which i bought from a nice bro from this Club) and some old lens salvaged from my dad's
90s SLR... not fancy and i guess it's a modest but prudent start.
i've been reading the newbie threads and stickies and was wondering if anyone can help me with some questions regarding this depth of field button located near the lens mount and the f-numbers stated on the lens.
I understand that a small f-number (of course combined with numberous other factors) would result in bringing depth in a close up shot of an featured subject and you'll get depth with a smaller f-number. Question is : if it is stated on your lens that the f range is say for e.g. 4.5 to 6.5, does that mean that you will not be able to adjust the number lower than that? And how does the depth of field button help?