You are right, i will answer and decide later, i look at answers or opinions/suggestions and later i will come to a conclusion, things happen in life, i might get high budget somehow, or the opposite, i might decide i want R1 but something bad could happen then i can't afford more than R7/R6ii, or i will say i saved for R5II then later i get unexpected budget then i will move to R1 or Nikon Z9, you know it happens.
Indeed, with the same sensor as the R7 (with the 90D), the 300mm f/2.8 ii or the 400 f/4 DO ii did bring out the resolution of the lens. However, I do see a noticeable increase in resolution with the RF 100-500mm on the R7 over the R5. Although the DLA of the sensor is f/5.2, the Bayer filter and the low pass filter do push the effective DLA closer to f/7. I have loads of charts like the following pair, taken at 19m from the target. At 500mm f/7.1, the lens on the R7 always resolves the 2.8 circles whereas on the R5 never does.
If you buy a 2020 Toyota, it’s almost certainly used and you’ll likely incur significant and increasing repair expenses in the not too distant future.
Exactly, i really don't mind those 2-4 years old cameras, but it is just the idea if i can save a bit more and buy something new why not, in the past i kept saving to buy finest 1 series cameras, and i tried not wait very long time so they don't pass their ages, R5II i am sure it will last 2 years to have an upgrade to it, or R1, while R3 and R7 are old enough to last any longer, i can't buy R6II any soon because i saw offers and nice prices of it, but it is also old and it might have a successor any minute soon, and i am not in rush until 3 months later.
My 2019 Toyota has never needed any repairs and Toyota has pro bono increased the length of the warranty to 2029 if I continue to get it serviced by them. Can you imagine how Canon would be if they sold cars? They pulled the CPS in the UK, so that's like removing the warranty half way through. The entry model R100 equivalent would come with rigid suspension springs, brakes would be on a subscription system (checked on the internet every time the ignition was turned on) and speed capped at 55 mph. The R7 roadster would have in-body-passenger-stabilisation suspension but high road and engine noise and subscriptions for using the brakes with compulsory checks but optional subscription for removing the speed cap etc.
I didn't start birding photography yet, so i can't answer this, mainly in my garden i won't walk around and i won't hide, but i can find spots to watch birds and image them like rooms and kitchen windows which viewing the garden, or buy a small tall tent where i can sit inside so it is hide and bait but not in that Camo style.
If that’s the scenario, then start with the R7 and see how you get on. The 300mm f/2.8ii with the 1.4xTC (or even the 2x) will pair very well with it. I’ve used that lens with the 90D that has the same sensor as the R7.
Is it really necessary i start with R7 while i already have 1DX? I mean i should just not waste money and go for more pricey one so i don't feel i want to buy again after R7, the crop factor sure will help, and that is also available in my other camera 1D3, i will try with my telescope even with manual focus and see if i need reach.
You started off the thread by saying you want to go mirrorless. You've been told by several birders here that the R1 and R5ii are the very best. Either stick with your 1D series or buy one of those if you think the R7 will be a waste of money. I also don't think you understand the difference between crop factor and resolution. The 1D3 might have a crop factor of 1.3 but its very low pixel count of 10 Mpx (giving 7.2 µ pixels) means it has less resolving power ("reach") than the FF R1 (6 µ pixels) and far less than the R5ii (4.39 µ pixels), and still lower than the R7 (3.2 µ pixels). Even your 1DX with 6.9 µ pixels beats out your 1D3. (The smaller the pixels, the higher the resolution and the greater the "reach".)
Because R7 although it has 33mp and a crop factor it is still less than R1 or R6 or R5 and R3, and when i asked about R7 before people said it will surpass my 1DX but it isn't a better choice over others, so to me it is like i go from top of the line DSLR to a med range mirrorless then later upgrade to top of the line, i already mentioned that R7 and R6 and even R6II/R5 all are old enough and subjective to upgrade by Canon, which means i will definitely buy them now/soon to upgrade them very soon later, pointless, while if i buy R1 or R5II or Sony A1ii those will never see upgrade by me for next 3-5 years at worst, so to me it is like i just try R7 to get start wet then i look for something else, what i will do with R7 then? I couldn't sell my previous cameras, not sure R7 will see any good sale later with its low price anyway.
No, what i mean is that if i buy now or soon i buy what is just released, not something that already upgraded or old model, so why i buy R6mk1 or R5mk1 if R6II and R5II are available already, why i buy R3 if Canon just released R3ii, as someone mentioned it is all about budget then, and i don't have any Canon mirrorless so i know even if i go with R8 or R10 it will be an upgrade to my 1DX and 1D3, but even in the past i never went with something like 7D or 7D2 or 6D or 90D, same with mirrorless, i stay with first 2 rankings mainly as pro, and i try to have latest series, so if Canon is releasing R5III by end of 2025 then i will wait also, but we know that R1 and R5II are just released, while R7 R8 R3 R6II are all subjective to be upgraded, are they all be upgraded no one knows, but all expecting they are upgradable any minute soon rather than R1 or R5II, Nikon released Z6II i believe and Sony A1II, if budget is bad then i buy the latest one but affordable, not an old one affordable, like i prefer to buy Nikon Z6II than buying Canon R5 or R6, but i think people think i only want to buy R1 and Z9 and nothing else, is R7 really the best camera for birding while i didn't see most majority images of birds from it anyway?
I had version II of both, but then i upgraded both to version III, i sold 2x II but i still have 1.4x II for sale, but if i go with mirrorless camera i might sell both mkIII and buy 1.4x of RF mount, but do you think it is any difference or worth it?
And when i bought my 1DX or 1D3 they weren't so old that i though about newer models coming, and i didn't regret, see after i bought my 1DX and Sony A7R they now have 1DXIII and mirrorless and A7R5, i missed so many generations or models already, if i will start or return back now again i better start/return with latest and hold that for another decade maybe or several years, in the past i wanted to jump every model coming out, now i won't, with R1 i won't upgrade until they bring R1 mk4, or with R5II i won't care until they have R5 mk5 maybe, same with Sony A7R5, if they release A8R i won't buy it until they release maybe A8R4, so i will jump after like 3-4 generations, but i see some they just buy every generation when they can, many already have R8 or R7 or R10 or R or R6 or R5 and even R1 and R5II which are just recently released, i have nothing of Canon mirrorless yet.
