Why is it so complicated for you D750 folks? Stay on topic.
Good suggestion.
This is about build, not how great the camera is...and it is great.
However, ask yourself this...
Why?
If you had a time-machine, would you rather walk through Mogadishu in 1993 with a D4 or a D750 and you had to return with all photos and a working camera.
I can 100% understand why anyone would choose the D750 over the D4 (besides cost). They both make great photos and the D750's ISO is equal to the D4 in most cases. It is lighter. It
OP did not ask about going to Mogadishu or DX range cameras.
But since we're here...
Just because you're in a rough environment you don't necessarily want the biggest heaviest and strongest gear.
Kinda cuts down your agility. And reduces your endurance/increases your fatigue.
Generally speaking your chance of mishap and quality of work will decline with fatigue.
People who carry stuff (be it photographic, camping, or battlefield equipment) for days in the field tend to go for the lightest possible.
does great video. If you are a casual shooter it is fine. If you use it in 8-12 hr stretches in a photojournalistic manner, or take it out in all weather, you cannot honestly think the body is as strong as a D300 or D3/D4.
That statement makes no logical sense Doc.
What you choose to use might be based on other factors than strength.
Many photographers (paid), have changed to the D750 precisely because it is lighter for those 12 hour shoots.
They realise that they are not going to be whisked away by an AFAIK non existant time machine to Mogadishu n the 90s (god knows why the 90s and not now)
Most don't even hysterically pretend or imagine that that will be the case.
Instead they realise the'll be shooting in dining halls, restaurants ballrooms, churches, parks and gardens or studios. And it it rains or snows they will seek shelter with the talent.
And that weather and dust are different matters to strength.
Most won't leave their gear unattended where a car can run over it, or even wander around with their camera on a tripod over their for hours.
Most won't spend hours outside in the rain or snow, because the talent don't enjoy it.
The worse that is likely to happen to their camera is it is likely to bump a wall, be jostled by a passers by or maybe be dropped a few feet. Or maybe have a small amount o fluid spilt over a small portion of the body/lense - and body construction will have no affect on what happens to the lens if liquid is spilt.
(BTW I notice how your shoot length is slowly increasingly from self important post to self important hysterical post).
The D3 and D4 are likely stronger than the D300 and the D750.
The D300 is possibly stronger than the D750.
But it makes not difference to anything.
Most photographers baby their gear and don't work in scenarios where the absolute greatest strength is required.
They carry it around in padded sofft or even hard cases, they take it out, shoot, maybe walk around for some hours then put it back in the case and go home.
It doesnt bear the weight of an exotic tele lense it does not get run over by a tank ot caught in the turret's traversing gear, it does not sit out on a tripod for 3 days in the snow doing a time lapse.
Not for most photographrs.
Most self proclaimed "pros" are part time or low rent shooters who like pro gear because it makes them feel special.
They are not Joe McNally, they don't shoot for a national publication, they don't go for Antarctic adventures. Those that do tend on the whole to look after their gear.
They also rarely feel the need for the appellation "pro" - they are self confident enough to just say "photographer".
In any case the real difference between those "pros" and us amateurs is motivation and production skills not necessary photographic or technical.
And there is no evidence at all that today's pro knows very much about their gear and how it works or how it is built on the other side of the UI.
Yes some do. Just like some amateurs do. But all the knowledge that used to be more or less restricted among the club or professional photographers is now out on the net.
Those days are gone. Cameras are too complex for them to do their own clean ann lubes/adjust their own timing and thereby save a few bucks.
Even if your Nikon Ambassador friend does get info other people can't get he either can't share it or him or some other Nikon Ambassador are sharing it. That's their job - to talk about Nikon gear, provide feedback and help disseminate info that Nikon want's out there.
And, as a rule, pros know zip about manufacturing, product development, engineering or materials science unless their career has otherwise intersected those fields at some point - which is not the case for most.
Some of you really do think that and I bet you have never shot with a D3/D4 for any length of time (or owned one). They are robust bricks and feel like you are holding a finely-tuned military rifle.
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