On 5/26/2015 6:39 PM, Igor PDML-StR wrote:
I am surprised that everybody is mad about the DOF part, but nobody is
surprised by this nonsense:
Once you realize it's nonsense, it's ALL nonsense. None of it is any
more surprisingly nonsensical than the rest of it.
--
Science - Questions we may
On Tue, May 26, 2015, at 04:34, james wrote:
While reading the photography part on flipboard (Smart phone app) A guy
named Dzvonko Petrovski is talking about crop v full frame sensors.
i use Flipboard a lot (have my own magazines) and have given up reading
the default Photography magazine—few
OOPS better link
http://www.lightstalking.com/cameras-sensor-size/
James
On 26/05/2015 8:34 PM, james wrote:
While reading the photography part on flipboard (Smart phone app) A
guy named Dzvonko Petrovski is talking about crop v full frame sensors.
Edited quote:
A 50mm F2 lens on full frame
While reading the photography part on flipboard (Smart phone app) A guy
named Dzvonko Petrovski is talking about crop v full frame sensors.
Edited quote:
A 50mm F2 lens on full frame is as expected a 50mm F2. On a 1.5 crop
sensor, it is a 75mm F3.
Link here:
On 26/05/2015 4:34 AM, james wrote:
While reading the photography part on flipboard (Smart phone app) A guy
named Dzvonko Petrovski is talking about crop v full frame sensors.
Edited quote:
A 50mm F2 lens on full frame is as expected a 50mm F2. On a 1.5 crop
sensor, it is a 75mm F3.
Link here:
you dont gain depth of field as the sensor gets smaller, you only gain
depth of field when you change the lens to a shorter focal
length to give the equiv angle of view on the smaller sensor.
JCO
On 5/26/2015 8:12 AM, Bill wrote:
On 26/05/2015 4:34 AM, james wrote:
While reading the
No he is wrong, and yes, he is an idiot, (not ad hominem as his article
pretty much proves the point). Reading his article will actually, much
as reading much of the tripe Kennyboy posts, make the average reader
dumber.
He's not afraid to share his knowledge, nor smart enough to disguise
I can't believe what I am reading.
50mm is always 50mm. 50/2 is always 50/2 no matter the format.
All that changes is the perception resulting from a crop.
Shoot with a full frame and cut off the outer third of your print. That's the
same as shooting with your crop sensor. Only perceived dof
Actually you gain, or lose, depth of field, based entirely on the size
of the aperture, if you look at the math, that fact is pretty apparent.
Smaller aperture equals smaller CoC implies greater DoF.
Light transmission, to simplify things, depends on the f stop which is
as we all know, the
Am 26.05.15 um 12:34 schrieb james:
A 50mm F2 lens on full frame is as expected a 50mm F2. On a 1.5 crop sensor, it
is a 75mm F3.
I'd be careful with such things. The production of BS in such quantities
might be treated as an industrial activity with all legal and fiscal
consequences.
On 5/26/2015 8:12 AM, Bill wrote:
On 26/05/2015 4:34 AM, james wrote:
While reading the photography part on flipboard (Smart phone app) A guy
named Dzvonko Petrovski is talking about crop v full frame sensors.
Edited quote:
A 50mm F2 lens on full frame is as expected a 50mm F2. On a 1.5 crop
I wasn't mad about that, what do you say about someone who obviously
believes that Hitler is still alive and living in Argentina., Well he
never said that in so many words, but the conspiracy theory required to
make ISO 100 be different for every sensor size, also implies a belief
in lots of
Really folks, this crap is best left to DPReview's open talk forum.
In other news, the Cormorants Lake Lodge near The Pas Manitoba is open
for the season.
bill
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I suspect this is just bad, confused writing rather than an attempt to defy the
laws of optics. I think a generous interpretation would be that he was trying
to say something along the following lines:
1. For a given EV, an aperture setting of f/2 and an ISO of 100 will lead to
the same
On 26/05/2015 6:37 AM, J C OConnell wrote:
you dont gain depth of field as the sensor gets smaller, you only gain
depth of field when you change the lens to a shorter focal
length to give the equiv angle of view on the smaller sensor.
This does, of course, presume that one wants to take the
I am surprised that everybody is mad about the DOF part, but nobody is
surprised by this nonsense:
Here is a fun fact: the lens set to f/2 on every sensor will result in
the same shutter speed for the same exposure. This is because the sensors
have different signal multipliers, meaning that
I just sent an email to the site: i...@lightstalking.com saying as much.
CollinB wrote:
I can't believe what I am reading.
50mm is always 50mm. 50/2 is always 50/2 no matter the format.
All that changes is the perception resulting from a crop.
Shoot with a full frame and cut off the outer
On 26 May 2015, at 14:34, Ralf R Radermacher fotor...@gmx.de wrote:
Am 26.05.15 um 12:34 schrieb james:
A 50mm F2 lens on full frame is as expected a 50mm F2. On a 1.5 crop sensor,
it is a 75mm F3.
I'd be careful with such things. The production of BS in such quantities
might be
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