Karroly

Lives in France Grenoble, France
Joined on Jan 13, 2009

Comments

Total: 1916, showing: 1 – 20
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In reply to:

Enzo1320: I don't know how you hold the camera, but I usually hold it with the bottom down - incredible.

And I have no idea how the rain falls in your part of the world, but I only experienced the rain falling down, never up.

Thus Sony was very reasonable to not sealing the bottom

Enzo1320,
Unfortunately, there is a phenomenon called capillarity that helps the water to climb up through thin gaps...

Link | Posted on Feb 22, 2018 at 20:20 UTC

I will buy the next model that gives a candy each time the photographer takes a nice picture. I am not a masochist...

Link | Posted on Feb 21, 2018 at 11:02 UTC as 41st comment
In reply to:

digiart: I saw this incident live and others have occurred since and before. This is dangerous to the athletes and to the photographers and must stop. Otherwise one day someone will get seriously hurt!

It's not hard to guess someone can easily break his/her neck, back, an arm or a leg, by hitting a photographer (or someone else on the piste) or his/her equipment.

I understand it gives the photographer better angles, but safety must come first!

@sludge21017,
Is it difficult to understand that an out-of-control skier can get off the track ?

Link | Posted on Feb 20, 2018 at 13:52 UTC
In reply to:

digiart: I saw this incident live and others have occurred since and before. This is dangerous to the athletes and to the photographers and must stop. Otherwise one day someone will get seriously hurt!

It's not hard to guess someone can easily break his/her neck, back, an arm or a leg, by hitting a photographer (or someone else on the piste) or his/her equipment.

I understand it gives the photographer better angles, but safety must come first!

If the photog thinks that his life will be less "miserable" by endangering himself when shooting skiers so close, good for him. But he also endangers the skier's life as well and it is sad to see that some, here, do not seem to be clever enough to understand that...

Link | Posted on Feb 20, 2018 at 00:02 UTC
In reply to:

jhinkey: Any idea what the true flash duration of a pulse and shape of the light curve is?

Why does the shape of the light curve matter ?

Link | Posted on Feb 19, 2018 at 15:16 UTC
On a photo in the Panasonic Lumix GX9 sample gallery sample gallery (1 comment in total)

Where is that high dynamic range ?

Link | Posted on Feb 18, 2018 at 01:05 UTC as 1st comment
On article Panasonic Lumix GH5S sample gallery (128 comments in total)
In reply to:

Photato: Big pixels magic !
Really liked these shots.
Wish there was an APSC body with big pixels like this camera.
10 Megapixels is plenty resolutoon except for Lanscapes or extreme cropping.
Folks that need higher resolution there are plenty of other bodies out there.
Glad Panasonic is offering this option.

J A C S,
This discussion started from Simon97's comment where he compares two 12MP images : one taken with a 12MP sensor, the other one taken with a 24MP sensor then downsampled to 12MP. So, we discussed about what happens to this downsampled image. But I agree, downsampling by 2x, or printing/viewing the 24MP image at the size you usually print/view the 12MP image, provide the same results : your eyes do the downsampling. Except that the picture from the 24MP sensor may look sharper.

Link | Posted on Feb 18, 2018 at 00:53 UTC
On article Panasonic Lumix GH5S sample gallery (128 comments in total)
In reply to:

Photato: Big pixels magic !
Really liked these shots.
Wish there was an APSC body with big pixels like this camera.
10 Megapixels is plenty resolutoon except for Lanscapes or extreme cropping.
Folks that need higher resolution there are plenty of other bodies out there.
Glad Panasonic is offering this option.

J A C S,
For sure. But the discussion here was about the effect - or lack of effect - of downsampling on noise, without considering the "collateral damages"

Link | Posted on Feb 18, 2018 at 00:29 UTC
On article Panasonic Lumix GH5S sample gallery (128 comments in total)
In reply to:

Photato: Big pixels magic !
Really liked these shots.
Wish there was an APSC body with big pixels like this camera.
10 Megapixels is plenty resolutoon except for Lanscapes or extreme cropping.
Folks that need higher resolution there are plenty of other bodies out there.
Glad Panasonic is offering this option.

J A C S,
There is no free lunch ;-)

Link | Posted on Feb 18, 2018 at 00:10 UTC
On article Panasonic Lumix GH5S sample gallery (128 comments in total)
In reply to:

Photato: Big pixels magic !
Really liked these shots.
Wish there was an APSC body with big pixels like this camera.
10 Megapixels is plenty resolutoon except for Lanscapes or extreme cropping.
Folks that need higher resolution there are plenty of other bodies out there.
Glad Panasonic is offering this option.

Even if I do not round the new half values, here is the comparison between the noise distribution of the original picture :

1/5 1/5 1/5 1/5 1/5
-2 ...-1...0... +1...+2
(This is an horizontal flat curve.)
and the downsampled picture, no rounding :

1/25 2/25 3/25 4/25 5/25 4/25 3/25 2/25 1/25
-2.....-1.5...-1....-0.5....0...+0.5...+1...+1.5...+2
This is a triangular shape. With a higher percentage of pixels having a low noise level.

Link | Posted on Feb 18, 2018 at 00:01 UTC
On article Panasonic Lumix GH5S sample gallery (128 comments in total)
In reply to:

Photato: Big pixels magic !
Really liked these shots.
Wish there was an APSC body with big pixels like this camera.
10 Megapixels is plenty resolutoon except for Lanscapes or extreme cropping.
Folks that need higher resolution there are plenty of other bodies out there.
Glad Panasonic is offering this option.

liberty aint what you think,
"No, it doesn't, as an average of the total number of pixels. The downsampling does reduce the noise count, but also reduces the count of non-noise pixels."
Obvioulsy, you did no understand my demonstration, so I will make it more simple.
Let's say we have five noise levels (-2, -1, 0 , +1, +2). Probability of each level 1/5 for a truly random noise. Downsampling of 2x to merge 2 pixels into one.
This make 5^2 = 25 possible combinations for the noise level, detailed as this :
+2 = (+2,+2 ) = 1
+1.5 = (+2,+1) (+1,+2) = 2
+1= (+1,+1) (+2, 0) (0,+2) =3
+0.5 = (+1, 0) (0,+1) (+2,-1) (-1,+2) = 4
0 = (0, 0) (+1,-1) (-1,+1) (+2,-2) (-2,+2) = 5
As this is symetrical :
-0.5 = 4
-1 = 3
-1.5 = 2
-2 = 1
1+2+3+4+5+4+3+2+1 = 25
As noise values are binary integers, after rounding :
+2 = 1
+1 = 5
0 = 13
-1 = 5
-2 = 1
With 1+5+13+5+1=25
New probabilities of noise levels :
+2 or -2 = 1/25
1 or -1 = 5/25 = 1/5
0 = 13/25
Conclusion : picture less noisy.

Link | Posted on Feb 17, 2018 at 23:46 UTC
On article Panasonic Lumix DC-GX9 sample gallery (53 comments in total)
In reply to:

Ben Herrmann: Whenever somebody looks at a series of sample images from any new camera, the responses can range the gamut of "hey, they look great," to "gosh, they are horrible..." Now go figure? To me, these look really good.

But more so is the fact that this kit lens - the Panny 12-60 - is a wonderful optic for both the focal range and price point. I've fallen in love with this lens a year or more ago and wound up with 3 of them. This kit lens (actually, IMO, it's performance levels are much better than a kit lens designation would imply) can stand up to the best of them (save perhaps the lack of a constant F2.8 aperture). Yet this lens is often (unfortunately) overlooked in favor of far more expensive optics.

Also, what I welcome is the gradual shift in how Panasonic renders colors. The color tonality of recent Panny cameras are gradually shifting to a more warmer tone without going bonkers by adding more red to the hues. This GX9 and 12-60 lens seems a great combination for the price.

Ben,
In your previous posts you did not mention the aperture of your 12-60mm lens. I thought it was the F2.8-4.0 and I discover with your eBay links it is the F3.5-5-6. I then understand the price difference...

Link | Posted on Feb 17, 2018 at 22:56 UTC
On article Panasonic Lumix DC-GX9 sample gallery (53 comments in total)
In reply to:

Ben Herrmann: Whenever somebody looks at a series of sample images from any new camera, the responses can range the gamut of "hey, they look great," to "gosh, they are horrible..." Now go figure? To me, these look really good.

But more so is the fact that this kit lens - the Panny 12-60 - is a wonderful optic for both the focal range and price point. I've fallen in love with this lens a year or more ago and wound up with 3 of them. This kit lens (actually, IMO, it's performance levels are much better than a kit lens designation would imply) can stand up to the best of them (save perhaps the lack of a constant F2.8 aperture). Yet this lens is often (unfortunately) overlooked in favor of far more expensive optics.

Also, what I welcome is the gradual shift in how Panasonic renders colors. The color tonality of recent Panny cameras are gradually shifting to a more warmer tone without going bonkers by adding more red to the hues. This GX9 and 12-60 lens seems a great combination for the price.

$249 ???!!! I envy you...

Link | Posted on Feb 17, 2018 at 19:48 UTC
On article Panasonic Lumix DC-GX9 sample gallery (53 comments in total)
In reply to:

Ben Herrmann: Whenever somebody looks at a series of sample images from any new camera, the responses can range the gamut of "hey, they look great," to "gosh, they are horrible..." Now go figure? To me, these look really good.

But more so is the fact that this kit lens - the Panny 12-60 - is a wonderful optic for both the focal range and price point. I've fallen in love with this lens a year or more ago and wound up with 3 of them. This kit lens (actually, IMO, it's performance levels are much better than a kit lens designation would imply) can stand up to the best of them (save perhaps the lack of a constant F2.8 aperture). Yet this lens is often (unfortunately) overlooked in favor of far more expensive optics.

Also, what I welcome is the gradual shift in how Panasonic renders colors. The color tonality of recent Panny cameras are gradually shifting to a more warmer tone without going bonkers by adding more red to the hues. This GX9 and 12-60 lens seems a great combination for the price.

Sorry, there was an Olympus 12-60mm F2.8/4 lens but for Olympus SLR, not M4/3...
Here, in France, prices are :
- Panasonic 12-60mm f/2.8-4.0 = 827€
- Panasonic 12-35mm F2.8 = 859€
- Olympus Zuiko 12-40mm F2.8 = 785€
So the Olympus is the cheapest...

Link | Posted on Feb 17, 2018 at 15:30 UTC
On article Panasonic Lumix DC-GX9 sample gallery (53 comments in total)
In reply to:

Ben Herrmann: Whenever somebody looks at a series of sample images from any new camera, the responses can range the gamut of "hey, they look great," to "gosh, they are horrible..." Now go figure? To me, these look really good.

But more so is the fact that this kit lens - the Panny 12-60 - is a wonderful optic for both the focal range and price point. I've fallen in love with this lens a year or more ago and wound up with 3 of them. This kit lens (actually, IMO, it's performance levels are much better than a kit lens designation would imply) can stand up to the best of them (save perhaps the lack of a constant F2.8 aperture). Yet this lens is often (unfortunately) overlooked in favor of far more expensive optics.

Also, what I welcome is the gradual shift in how Panasonic renders colors. The color tonality of recent Panny cameras are gradually shifting to a more warmer tone without going bonkers by adding more red to the hues. This GX9 and 12-60 lens seems a great combination for the price.

What is the best optically ? :
- Olympus Zuiko 12-60mm F2.8-4.0
- Panasonic 12-60mm f/2.8-4.0
- Olympus Zuiko 12-40mm F2.8
- Panasonic 12-35mm F2.8

Link | Posted on Feb 17, 2018 at 15:19 UTC
In reply to:

Superka: Why not using CCD instead?

Roland,
As far as global shutter is concerned, CCD is an option. However, for sure, CMOS sensor frame rate is faster, even with no global shutter.

Link | Posted on Feb 17, 2018 at 15:12 UTC
On article Panasonic Lumix DC-GX9 sample gallery (53 comments in total)
In reply to:

Ben Herrmann: Whenever somebody looks at a series of sample images from any new camera, the responses can range the gamut of "hey, they look great," to "gosh, they are horrible..." Now go figure? To me, these look really good.

But more so is the fact that this kit lens - the Panny 12-60 - is a wonderful optic for both the focal range and price point. I've fallen in love with this lens a year or more ago and wound up with 3 of them. This kit lens (actually, IMO, it's performance levels are much better than a kit lens designation would imply) can stand up to the best of them (save perhaps the lack of a constant F2.8 aperture). Yet this lens is often (unfortunately) overlooked in favor of far more expensive optics.

Also, what I welcome is the gradual shift in how Panasonic renders colors. The color tonality of recent Panny cameras are gradually shifting to a more warmer tone without going bonkers by adding more red to the hues. This GX9 and 12-60 lens seems a great combination for the price.

Ben,
Did you use the 12-60 lens with your Olympus bodies ? I ask because I own an Olympus body and was disappointed by the bad AF performances of some Panasonic lenses (compatibility issues ?).

Note : I see the Kodak P880 in your gear list. I still have mine. I really loved it. It was a camera with loads of features, but with a slow write access speed to the SD card.

Link | Posted on Feb 17, 2018 at 14:56 UTC
In reply to:

Superka: Why not using CCD instead?

A CCD sensor has a sample and hold circuitry at each pixel which eases a global shutter implementation. Although different readout modes are possible, CCD sensor with global shutter are easy to do and were already used for long...
https://www.azom.com/article.aspx?ArticleID=12647

Link | Posted on Feb 17, 2018 at 14:52 UTC
In reply to:

shademaster: First they came for the film.
Then they came for the mirror.
Now they're coming for the shutter.

Wye Photography,
Maybe I was not clear enough. Most of the film cameras do use batteries, except in the very old days. So I do not wish "they" could get rid of the battery, but instead they could make electronics sober enough so that the battery is as small as my analog EOS 300X battery...
My second wish is that manufacturers agree on a few standard form factors and voltages, like in the alkaline battery world with the AA, AAA , C, D, etc, types. Each type would then be sold in much greater quantities, lowering prices. But I am afraid that making proprietary - and expensive - batteries is a way for the camera manufacturers to make money...

Link | Posted on Feb 17, 2018 at 14:21 UTC
In reply to:

shademaster: First they came for the film.
Then they came for the mirror.
Now they're coming for the shutter.

I hope they will come for the battery, next...

Link | Posted on Feb 17, 2018 at 11:28 UTC
Total: 1916, showing: 1 – 20
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