Whats good to replace a Minolta Dynax 7D?

[Mallers]

Hello,
I have an old Dynax 7D from Minolta, plus some Minolta lenses and a Sony one form when Sony took Minolta over.
Im looking to replace the camera body for something newer, but not sure what to get. The dilemma really are the lenses. Do i stay with Sony (albeit i believe i will need an adaptor to make the lenses fit the newer bodies), or dump the lot and start from scratch? If i start from scratch, whats good to get? Im thinking Canon but of course they charge a premium. If i stay Sony and keep the lenses, ill probably at some point get new ones anyway, in which case buying new lenses and a new body would leave me at the same point as if id gone with a whole new maker anyway.
Having said all of that im not against a decent second hand body, the only proviso being its recent enough in the makers product cycle that it will be supported for some years.
I mainly shoot museum visits, landscape and airshows/car races (Goodwood, some Brands Hatch stuff). Shooting for fun, not for a business. Id like to do more with my camera, at moment i dont always get out of auto settings.
As an example, i idly went to a camera shop near where i work and tried a mirrorless sony a7iii, i quite liked that although its clear the viewfinder was digital not optical, and i do wonder how you can focus using the viewfinder if it looks blocky and digital and not how you would see things on a printed photo.

 

[Snapshot]

One option would be to find one of the more recently discontinued A-mount cameras and carry on using your existing lenses. A look a DPReview's camera listings should indicate which are the most recent.
The Sony A-to-E adapters are not cheap and didn't perform well with the earlier A7 cameras but the latest one may be better.

The market is shifting to mirrorless so electronic viewfinders are now the norm. The EVF on an A7 III isn't the best but shouldn't look blocky.

The good thing about the current marketplace is that it's really hard to make a mistake as all the major brands are making great products. The best thing might be to see which brand has the lenses you want then choose a body from that range.

 

[Mallers]

many thanks! ive looked at a few mirrorless system lenses for sony and Canon, appreciate im new to mirrorless and may have missed something, but it look's like theres not much in the way of zoom lenses for these camera, most lenses seem to top out at under 100m. Does that sound right?

 

[Snapshot]

Sony is the most mature range and has two 70-200mm, 70-300mm, 100-400mm and 200-600mm zooms. Nikon and Canon are relatively new to mirrorless so don't have a full range of lenses yet but do have good convertors so their DSLR lenses can be used with little loss of performance.

Don't neglect Fujifilm's offerings as that has a decent range of longer zooms. There are also the micro four-thirds ranges from Olympus and Panasonic.