I don't think I'll be able to do this as I'm looking around for tips & tricks for the camera so naturally its all over but hey, if they release D760 I won't really mind anymore because it will be at least £2000 (based on the trend now) and I paid £1200 so I might lust over new features but I know that I would be crazy to pay that much (or maybe more) for something that I won't notice anyway as my skill is not there yet.
Anyway, initial impression of the D750 coming from D90:
1) its nice and small
2) its super loud - my D90 was quieter but this monster is super loud so that will take some time to get used to
3) layout is similar in many ways to D90 so that was kinda easy but on the other hand it took me ages to find where to change the autofocus as the button was missing - I had to google it
4) the ISO and low light seems to be crazy good. I pushed it and was impressed how little light I can get away with and how little noise I get from high ISO. Very impressive
Some things are still a bit confusing so will take me a while to find a way. ie. I set the role of 2nd memory slot as jpeg so i have raw for slot 1 and jpeg copies for slot 2 but it still shoots both raw. Not sure what I overlooked but will find it.
Also, when i get focus I was used to little tiny noise which D750 doesn't seem to have so thats different also.
One thing though, what is the most effective way to check that my lens is working correctly? The reason I ask is that yesterday there was one occasion when the camera struggled to get focus and it took a long time even though it was in the living room with a plenty of light - so that got me thinking that my issue with the D90 + 50mm 1.4G lens could not be only from that combo and maybe, just maybe, there might be an issue with the actual lens. What would be the signs that the lens can have issues?
I also was expecting much sharper results from those 24mp with the prime but I think that i need to improve how i hold the camera also as when i zoom in there is almost always little blur so I think that might be my fault. Even though I was at 1/125 or faster so kinda unsure what is my fault and what is the lens.
Personally, I would prefer that the 50mm lens has some issue so I don't feel like a complete noob but maybe its a combination of few things.
I got really good ebook recently - Secrets To The Nikon Autofocus System - from Steve Perry so I hope to learns tons from it. I think that will be a great start.
I'm gonna look for some workshops so if anyone has a suggestion (London) then please let me know. I really wanna grow and enjoy the benefits of this fine machine