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Dose sensor resolution matter to anyone other than a photographer?
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Mar 28, 2024 10:08:04   #
jerryc41 Loc: Catskill Mts of NY
 
Bragging rights are a major part of the photographic hobby. 😁

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Mar 28, 2024 10:16:31   #
DRM Loc: NC
 
CHG_CANON wrote:
For most everyone, pixel resolution at 20MP is more than enough for any editing and / or printing needs. That 20MP to 20MP range is what the 'working professionals' need for a 2-page spread (magazine print), as if anyone was still printing or purchasing physical magazines in 2024. We see this reality in the slow upward migration of the top (flagship) pro DSLR models.

Examples:

Nikon
D3X - 24MP, 2010
D5 - 20MP, 2017
D6 - 21MP, 2020

Canon
1Ds-III - 21MP, 2007
1DX - 18MP, 2011
1DX-III - 20MP, 2016

Meanwhile, at the same time those flagship models were being released, all around the $6000 per body price range, even the entry-level models were reaching a standard 24MP resolution. The 'pro' full-frame models at one level-down from the 'flagship' bodies reached a 30- to 50MP range for the same timeframe, examples like the D810, D850 and 5DIV models, as well as the top full-frame mirrorless bodies typically all coming out around 45MP.

Personally, for my wildlife photography, I can 'see' the difference in cropping into the results in FF cameras with the same focal length lenses, where one body is 22MP and the other 24MP. I have more options with the images (camera) that has more pixels, even just a 2MP difference. I've also seen demonstrations of the massive print sizes and massive fine details of architecture and cityscapes captured at 45MP.

But again, for most everyone not shooting distant wildlife and not printing anything, buying bodies (sensors) beyond 24MP is just wasting money on capabilities you'll never need.
For most everyone, pixel resolution at 20MP is mor... (show quote)


Generally agree. I'm almost exclusively a landscape photographer, aside from an all-too-infrequent trip to Yellowstone, Everglades, or similarly wildlife rich location. I regularly sell 24x36 metal prints of images made with the Canon 5D (12mp), 5Dii (20), 5Diii (22), and 5Div (30). Quality of the 5D and 5Dii images is, of course, less than those from the 5Diii and especially the 5Div; that seems to be much more obvious to me than to most customers, however. Files from the lesser cameras require more careful processing, and shooting with those models was more limiting than with the 5Div (or with my current R5). Particularly in low light situations where bumping ISO is now second nature, doing so with earlier models often resulted in completely unusable files.

I could probably sell just as many metal landscapes if I was still shooting the 5Div. I wouldn't want to trade my R5 for any of the 5D models, though--even the 5Div--but my mirrorless affinity has far more to do with mirrorless technological advances, much less to do with megapixel count. For my work, a 30mp sensor is almost always more than adequate. But when an occasional customer orders an over-sized metal print--40x60, 36x72, 40x80, etc.--it is nice to have 45mp files with which to work. Depending on the specific image, I might try those sizes with 5Div files, but absolutely would not with files from any of the 5Div's predecessors.

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Mar 28, 2024 10:29:56   #
selmslie Loc: Fernandina Beach, FL, USA
 
DaveyDitzer wrote:
I am planning a specific landscape photo shoot which is 300 miles away (summer home location). I plan to capture a shot that I can have printed to a large final size (ca. 30x36). For this I'm taking my D850 and several lenses on a hike to make sure the resolution can work for this large print size. My other FF body is 16 mp. So the 46mp of the D850 seems to make sense for me in this situation.

A print that large would have a normal viewing distance of about 3 feet regardless of which camera you used.

You have little control over how close anyone gets to the finished image but anything closer than about 3 feet would be a lot like pixel peeping.

If your other camera is as light as a Df you might try the scene with the same lens on both bodies.

Unless the viewer is also a photographer and you mention the MP of the camera, they may not get close to look at the details.

The ppi at 36 inches for 46MP is 230, for 16MP it's 138. If the viewer gets within 2 feet of the print they might start to see a difference if their eyesight is good.

But if the image is good enough, they are less likely to move in. They might just stay back and take the whole thing in.

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Mar 28, 2024 10:30:48   #
claytonfm
 
Ah, the "getting someone to move on" syndrome, the bane of all photographers.

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Mar 28, 2024 10:32:38   #
selmslie Loc: Fernandina Beach, FL, USA
 
Canisdirus wrote:
For the viewer...and for the photographer...the bigger the sensor...the more options there are...better chances of making that stellar image.

Only the photographer has options. When looking at a print, the viewer has no options other than to pull out a loupe.

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Mar 28, 2024 10:35:18   #
charles tabb Loc: Richmond VA.
 
Longshadow wrote:


NO. Not once the final print is made and displayed.
The viewer will either like it or not.

Nit-pickers, pixel peepers, those obsessed may wonder though.
But not the "normal" person viewing the image.



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Mar 28, 2024 10:38:48   #
selmslie Loc: Fernandina Beach, FL, USA
 
DRM wrote:
my mirrorless affinity has far more to do with mirrorless technological advances, much less to do with megapixel count. For my work, a 30mp sensor is almost always more than adequate.

Exactly my sentiments.

The most rabid MP advocates have probably never made a large print from any medium. They just think that more MP might help if they ever get around to it - some day, if ever.

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Mar 28, 2024 10:39:31   #
Longshadow Loc: Audubon, PA, United States
 
selmslie wrote:
I didn't pixel peep to develop either of these shots. This time I am showing only the 4k version of each because the sharpness is indistinguishable unless I pixel peep.

Their size is slightly different because I was a little closer for the Z7 shot.

Both were taken at f/5.6 - more DOF and more detail than for the initial example.

But I'm looking at the END RESULT...
The number of pixels does not matter to me.
But it does to the photographer.

With TWO images, yes, I can make a comparison, with one I can't.
Do most photographers print two????

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Mar 28, 2024 10:49:52   #
DRM Loc: NC
 
selmslie wrote:
A print that large would have a normal viewing distance of about 3 feet regardless of which camera you used.

You have little control over how close anyone gets to the finished image but anything closer than about 3 feet would be a lot like pixel peeping.

If your other camera is as light as a Df you might try the scene with the same lens on both bodies.

Unless the viewer is also a photographer and you mention the MP of the camera, they may not get close to look at the details.

The ppi at 36 inches for 46MP is 230, for 16MP it's 138. If the viewer gets within 2 feet of the print they might start to see a difference if their eyesight is good.

But if the image is good enough, they are less likely to move in. They might just stay back and take the whole thing in.
A print that large would have a normal viewing dis... (show quote)


Personally agree with all that. One printing limitation with my own lower mp files is that I always print at 300ppi, no matter the dimensions of the print in inches. That's the recommendation from my favored print labs (though one of them acknowledges that they will accept files at 200ppi), so I dutifully adhere to their parameters.

Interesting regarding your mention of other photographers. My space in one particular gallery has 18 metal prints on the wall, in typical speculative sizes of 20x30, 24x36, and 20x40. One of the 18 is a 24x36 print from a 35mm slide. Particularly if a visitor to the gallery mentions being into photography, I often ask them to ID for me the one print that came from film. It becomes a fun exercise for most people, but no one has ever yet correctly identified the film print on the first guess. Perhaps my visitors/potential customers are not very knowledgeable or sophisticated photographers, but I think lacking intimate knowledge of the equipment involved makes a huge difference in the ability of many people to assess (and perceive) image quality. Or lack thereof.

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Mar 28, 2024 12:00:53   #
neillaubenthal
 
Resolution matters…but as note it isn't because of ability to see a difference on screen or a print from the whole image. It matters because it allows you to crop more so to increase the size of the subject (like distant wildlife) in the output without losing output quality because of the lower pixels on duck (POD) number. There are other issues…noise and such…with cropping but POD is the real reason for higher MP sensors.

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Mar 28, 2024 12:23:01   #
selmslie Loc: Fernandina Beach, FL, USA
 
DRM wrote:
But when an occasional customer orders an over-sized metal print--40x60, 36x72, 40x80, etc.--it is nice to have 45mp files with which to work.

If you anticipate needing the extra megapixels there is an alternative that is much less expensive than a high megapixel body, a stitched panorama.

I used PTgui to stitch the three raw files together, saved the result as a 16-bit TIFF and adjusted the brightness in Capture One.

A 42.5MP panorama from 3 handheld shots from the 24MP A7 III
A 42.5MP panorama from 3 handheld shots from the 2...
(Download)

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Mar 28, 2024 12:25:41   #
joecichjr Loc: Chicago S. Suburbs, Illinois, USA
 
selmslie wrote:
If you anticipate needing the extra megapixels there is an alternative that is much less expensive than a high megapixel body, a stitched panorama.

I used PTgui to stitch the three raw files together, saved the result as a 16-bit TIFF and adjusted the brightness in Capture One.


A scenic beauty 🎯🎯🎯

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Mar 28, 2024 12:43:46   #
selmslie Loc: Fernandina Beach, FL, USA
 
joecichjr wrote:
A scenic beauty 🎯🎯🎯

Hardly that, but it was handy.

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Mar 28, 2024 12:53:47   #
DaveyDitzer Loc: Western PA
 
DRM wrote:
. Perhaps my visitors/potential customers are not very knowledgeable or sophisticated photographers, but I think lacking intimate knowledge of the equipment involved makes a huge difference in the ability of many people to assess (and perceive) image quality. Or lack thereof.


Is the print from a slide one from Kodachrome 25?

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Mar 28, 2024 13:27:59   #
bwana Loc: Bergen, Alberta, Canada
 
selmslie wrote:
If it sounds like a provocative question, it was intentional.

A discussion took place recently on another thread that got me thinking about it. So I did some comparison's using a 24MP A7 III and a 45.7MP Z7 using each camera's 85mm f/1.8 lens (at f/2.8). Those lens resolutions are very close according to DXOMARK.

I viewed the results on a 2k (1920x1080, about 2MP) and 4k (3840x2160, about 8MP) monitor and couldn't tell them apart.

I printed the original full-size images on 8.5x11 Red River UltraPro Satin paper at their best settings. I still could not tell them apart.

Then I exported each image at a width of 1920 and 3840 pixels as well as at their full resolution. They will be attached to the next post.

The only time I could tell them apart was at the full resolution pixel peeped at 100%. But the only way anyone can see that is on a monitor where the magnified image is way too big to fit the screen.

There is a message here and some of you aren't going to be happy with it.
If it sounds like a provocative question, it was i... (show quote)

Resolution is EVERYTHING when you're cropping small features. It is amazing the difference between a Sony A7R V (61MP) and A7 III (24MP) in this regard; the reason I use the A7R V for astrophotography.

bwa

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