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Regarding stopping down, every Nikon camera I've owned had a stop-down preview. I don't doubt there have been Nikons without it, but it's a feature it's hard for me to imagine not having. Are you saying that always being in f-stop preview mode is a benefit? This seems like a bit of a stretch.
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I also think this is where Nikon made a serious mistake with the FTZ adapter system.
Sure have the adapter they currently do, but more importantly, for Nikon from a business perspective ... a full featured adapter would have leveraged the usability of all their previous lenses.
This has been said many times, over and over, but the primary issue with the Z system is the lack of native lenses, hence the FTZ helps with that. So the 'whole system' has an advantage that other systems may(or may not) have had too.
But as said, why go with a Z camera, rather than any other system if you can't leverage all those old semi compatible lenses?
So I'm sure for many that understand this, it may have crossed their minds in some way(ie. induced doubt) when the time came to make a purchase choice.
Therefore, the news that Sony's A7 outsells the Nikon Z pair by a fair number shouldn't come as a surprise.
Nikon should have approached the Z system in totality from the point of view that it will work
fully with
all the lenses that they currently sell, and the sad point is that the Z cameras don't.
I believe a botched marketing and product management choice from Nikon .. ie. Nikon's current woes are a direct result of mismanagement.
Note tho, the full featured FTZ adapter isn't an accessory that the Z owner has to purchase either, it's obviously an option, and in theory could have been priced even 2x the current FTZ adapter .. or more.
The enthusiast would then have had the option to buy or not. But as it is, Nikon aren't giving those potential customers that choice, they're making it for 'us'.
So imagine the marketing campaign that Nikon could potentially use with just this one optional device ..
Choose Nikon Z, and have full access to 60 years of history and over 100+ million lensesThere's no come back here from Sony .. marketing advantage to Nikon!
At a time when camera sales are in free fall, every nano-advantage can only be a good thing .. a few more sales here, a few more accessory sale there .. etc.
As I remember it, when Sony first brought the A7's to market, they had two maybe three adapters(for A mount lenses) of varying feature sets, users then had the option to choose for themselves how much they desired one over the other.
So going from feedback, not just on here, other fora have also had similar opinions on the lack of such an adapter, and recently Thom also made mention of this point too.
I know I'm not yet interested in a Z camera of any type, till more about the 'whole system' is revealed.
So the issue is not so much with the Z system in and of itself .. that appears to be fine. The issue is directed more so towards Nikon's management tactics. The current situation could easily be redressed simply with the release of just such an adapter .. then a push from Nikon as to what it can allow for those that may be interested.
As for EXIF .. why not? It's always better to have included it in the data than not. Again, it comes down to options. Those of us that prefer it .. then have it. Those of you that don't want or need it, then have the option to remove it.
The option to remove it is trivia and easy. The option to add it is not so.
For my non connected lenses, I just add keywords, in the form of IPTC data, which allows me to search for images shot with lens X, set to aperture value f/whatever .. and with or without a TC and whatnot.
No harm in having that kind of access.