jeanphilippe Goube

Lives in France Toulouse/France, France
Works as a Aerospace Engineer
Joined on Aug 17, 2007
About me:

Love wildlife, dogs, horses
Good wines, fine chocolates
Old timer railways

Comments

Total: 6, showing: 1 – 6
On photo Clipped Wing Spit in the Aviation legends - Vickers Supermarine Spitfire challenge (13 comments in total)

Pierre Clostermann a famous french pilot serving in RAF called in his book the spit Vc "clipped, clapped, cropped"...

Link | Posted on Apr 3, 2020 at 12:20 UTC as 7th comment
On article Gallery update: The Nikon Z7 goes wrestling (216 comments in total)
In reply to:

CanonSharpShooter: Couldnt this all be done with a D850? Manufacturers just taking the mirror out to get you to rebuy the gear that you already have. Mirrorless is an excuse to get people open up their wallets again!!

I'm speaking of a true 800 mm; the angle of view if so narrow - and the lens so heavy - that I doubt it is useful for tracking a relatively fast bird

Link | Posted on Nov 4, 2018 at 21:31 UTC
On article Gallery update: The Nikon Z7 goes wrestling (216 comments in total)
In reply to:

CanonSharpShooter: Couldnt this all be done with a D850? Manufacturers just taking the mirror out to get you to rebuy the gear that you already have. Mirrorless is an excuse to get people open up their wallets again!!

I have a 800 mm; have you tried to track a bird flying with a 800 mm ?
For wildlife tracking I also have the 400 f2.8 and the D850; another combo for another use ;-) and the 500 PF too

Link | Posted on Nov 4, 2018 at 19:27 UTC
On article Gallery update: The Nikon Z7 goes wrestling (216 comments in total)
In reply to:

CanonSharpShooter: Couldnt this all be done with a D850? Manufacturers just taking the mirror out to get you to rebuy the gear that you already have. Mirrorless is an excuse to get people open up their wallets again!!

Sure it can be done with a D850; but te aim is to demonstrate that the Z7 is close to the D850 in this occasion - a pro would have used a D5.
I'm sold on a Z7 after having tested it at the camera shop; for me the advantages are :
Less noise, no noise at all if electronic shutter used
Less vibrations on a long lens - I currently use a 800 mm and mirror/shutter vibrations are a real issue, of course for wildlife mirror up is not an option
Compact primes - have a look at at the 35 mm. I have a 35 mm Zeiss and I would appreciate to reduce the weight by a factor 2 or 3
Focus peeking in the viewfinder for manual focus for landscapes, or for my favorite Zeiss lenses
Image stabilisation for my favorite Zeiss milvus lenses (again)
Zoom in the viewfinder !
Most of the time for wildlife i use auto iso mode, if picture will go overexposed by mistake I immediately see it in the viewfinder
May be I can find some others :)

Link | Posted on Nov 4, 2018 at 18:07 UTC
On article Nikon Z7 added to studio comparison scene (301 comments in total)

D850 looks definitively sharper; is it the same lens via the adaptor ? And how is the focus made too ? Or maybe the shutter induce more vibrations on a lighter camera ?

Link | Posted on Sep 28, 2018 at 13:32 UTC as 66th comment

Sounds very interesting and a new approach to form an image; don't forget though that no readout noise doesn't mean noise-free picture : the photon flow is a random process that is Noisy by nature - and this noise cannot be removed. It is reduced when you increase exposure time or aperture to increase the number of photons that hit a given area of the sensor.

Link | Posted on Feb 23, 2018 at 18:05 UTC as 37th comment | 5 replies
Total: 6, showing: 1 – 6