I used to work as wedding photographer, but i m also director of photography for french humorists ...
I've had Nikon, Canon, Pentax bodys ... for weedings, I only work in France for big ceremony and ... I 've choosed now to work with only furtives Pentax K5 ... why ? Because it's a great body, light, giving me quite equal quality to my D3 ones !
Canon's body like 7d, 5dmII i was using didn"t enjoy me : plastic made, not great focus for the 5dmII, not real better picture than my k5, not enjoying to control ... for me it has always been 'has been' body ! ... i 've sold them within 6 months !!!
Nikon ? i still have one and won't comment as i love it as my pentax !
I enjoy a lot the rendition of the k5, well balanced, well contrasted, it's the only one that gives me the feeling to work with "argentique".
Choosing Aps-c ... instead of full frame ? ... For same price, Find me an equivalent for a 127 1.4 ( 85 1.4 cropped x 1,5 ) like a 135 1.4 on ff and i will enjoy !
For the moment, K5 + 127 1.4 ( 85 1.4 or a 30 1.4 or 50 1.4 ) is a best combo for weddings and low-light shooting like party ! ... For the price, i never saw elsewhere this equivalent of such a combo with 135 1,4 mm etc etc ...
I work so with 2 K5 setting them with different lenses : 30 1.4, 50 1.4, 85 1.4 and 16 50 2.8 & 50 135 2.8 ; 2 x Flash AF360
It gives me the best and furtive way in weddings, but i also work with a d3 as a full frame when needed ... when needed ? : now only for very very fast action and compo and when i need to manage more my bockey with full frame, also when i need raw that i can develop very quickly ( 12 Mo ), when i need a precise balanced softness that the 24x36 can deliver better to me, when i need to work real lens without crop ... waiting to see what pentax will deliver us one day !
For studio when time and money is given to create best, or in weddings for best studio (in or out) pictures and when specfic back plan and bockey is needed i used a 645d whe had bought with some others photographer i know, because no other format can deliver such back bockey ...
On a wedding day ? when a geek dad photographer asked me ( very marginaly) what i' m working with, showing me he has a brand new canon ? i 'm used to answer thant i work with my eyes, my head and my hands and my experiences to deliver best pictures using best lenses no way the the body ... ;-) , other times, i answer that i work with a smile !
at this point of view, i must tell you that all my bodys had been modified with black gafer as "no name" ones, same for optics.
It's very very unusual for me to see some people coming to me to ask me what i m working with ... but it always makes me laugh because when someone comes too me with that asking it's always turning in "can you explain me something i didn't understood on my canon ? " or "can you deliver me some tips ?" ...
Prime lens and practice makes advantages of a photographer ... not the company name of a body ! ...
i 'm so used to see people with last canon FF equiped with an entry level transtandard zoom being proud of their body but didn't suceed taking picture without flash in a church : of course at f 5.6 with a 70 210 3,5 5,6 ! or didn"t succeding for a quality picture because their body are not calibrated and lenses not adjusted ! the more of them use in P modes, take iso at max ... !!! ...
i prefer my k5 with primes that are very furtive and less disturbing for people (as the shutter 2 is very furtive ! imagine in a church the advantage !!!!!!! ;-)))), and if a body fall and break down ... it's a better controled invest !
Let me tell you again that it's very marginal that people matter with my equipment, and i must tell that in 95% of my activity, no one mater what i m working with, it's my affair as i deliver satisfacting pictures they are waiting for and they paid me for !
For the moment, my combos K5 + D3 for full frame is the very best for me till pentax will wake up showing me what they can do with ff ! ;-)
645 is a format "must have" for very high controled and quality pictures.
98% of my recurent customers haven't seen i have changed my bodys ! : all that matter is when they have a look on the pictures and they feel and say : "it's great pictures, i enjoy, thank you very much that's exactly what we were wainting for !!!! "
So ... stop thinking that people are looking at your equipment and Enjoy ! ;-))))
(sorry for my old poor english, i don"t practice a lot here in france) ...