Hello Jane
1- It is very true that your photography should be lead by your creativity and not by your gear......and then you fall in the catch 22 where you need a particular gear to achieve a particular look.
2- Glass is way more important than camera bodies.
3- Shoot within the limits of your experience and your gear.
4- There is no best camera and the D90 is a very good camera.
5- I would not get a Range Finder or a Mirrorless for my type of photography. This does not apply to any other photographer and it is futile to go into a discussion of why DSLR and not Mirrorless.
6- The Sony A7/R like any other camera has flaws, namely the light leak and vibration as well as some other quirks which are minor or major depending on the photographer.
7- EVF vs OVF is again a personal choice. Maybe sometime in the future EVF will be technically acceptable. Live screen viewing is available on all cameras.
8- Whatever and whichever gear you use is only the start and today photographers have to be well learned in post production in addition to photography practice and theory.
The days of one fantastic picture straight out of the camera is diminishing and pictures coming out of Photoshop are increasing.....these are the ones winning Awards!
9- Photography has never ever had better days than today.
10- As a personal advice, sell all your zooms and get Primes.
Finally, my strongest advise is to stop reading and visiting websites. Get you camera and go shoot and process.
Greetings Camillo,
i agree with you into the terms, that gear doesn't matter (almost) and you can shoot with whatever you like to make great pictures.
I'm a optical viewfinder guy instead of EVF, but i must say against my thoughts, the EVF onto the A7 Series body is really nice, from resolution & features, it's of course something different as a OVF, but i really can life with this, and it'sa real good one built into the A7 Series.
About the light leaks - the Fuji X-T1 also suffered from the same problem,
and even the Canon 5D III had the same issues when it was brand-new onto the marked, even Nikon suffered from this issues, which are already fixed by now.
About the A7R shutter vibration - that issue is very rarely, mostly a theoretical one, you should have post the dpreview forum link here for instance,. no offence. :)
Of course, the D90 is still a good DX (APS-C) DSLR, and i still love my D90,
using it these days sometimes only with the 35mm/1.8 DX Nikkor, or with
my Sigma 30/1.4 Art Prime lens - i've also more than a dozen primes collected
within the years, mostly Contax Zeiss glas, but also a few zooms, and from
minolta, yashica ml, M42 glas, and so on....i love primes also way much, but i must also say that i never exchange lenses when i am out my my flat, that means onto the street or at a specific location when doing my shots, so i'd take another body w/me often with another prime, or a small zoom with me to catch the pictures that i want.
as for in general, people, including myself, suffering sometimes from the G.A.S. syndrome - that gear aquisation syndrome - whileas new DSLRs/Mirrorless, Cameras with up2date sensors could give you higher resolutions, more dynamic range, more color depth, then older generations before - the best camera is always that one with you...by your side....because otherwise without it, you'd have missed that shot.
overall, i'd never say to sell all your zooms, because zooms often come in handy, and you shouldn't compare their image quality with fast prime lenses - but i can tell you from my own experience, that with a zoom, you're standing at a specific point, and "dial in" that means you zoom in or out, adjusting the focal length...whereas with a prime lens, you simply think much more about the composition, to catch or capture that specific image, what you want to shoot.
as my grandpa said to me when i was a teenager, you've got the zoom into your legs. and a well known photographer said (name forgotten) if you pictures are bad, you haven't been close enough..so, exactly that's the point.
i love my primes, but i like also my zoom lenses, got a few ones, for instance the zeiss 28-85/3.3-4, 28-70/3.5-4.5, 35-70/3.4 (which sharpness is equal to primes), minolta 35-70/3.5, tokina 28-70 SD II (which was dead cheap for instance, and really could compete with primes when stopped down to F8 to F11 for example, it uses SD glass, which is super low dispersion glass)
so much for that. always have good light, guys.
greetings,
marc