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#31
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Who's for 50 Megapixels?
On Fri, 06 Feb 2015 22:38:04 -0500, nospam
wrote: In article , Eric Stevens wrote: and, espcially with 50MB files it would not be long before whatever I bought now would be too small. That's why I referred to it as "soon-to-be-obsolete". a 4 tb drive holds around 80,000 50mb photos. if you shoot 16,000 photos per year, you'll fill that in about 5 years. i don't know what you consider 'not be long' but in 5 years, you'll be wanting to replace the drive anyway because the chance of a drive failure starts to go up dramatically. Agreed. But I'm not made of gold you know. you just bought a d750. you can afford a few 4tb drives. someone who can afford a 50 mp camera can certainly afford the drives. Your logic is flawed. I have just bought a D750. I can't afford *anything*. then you should not have bought a d750. Why on earth do you say that? -- Regards, Eric Stevens |
#32
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Who's for 50 Megapixels?
In article , philo
writes: 50 MP camera might be good for producing ten-foot-tall prints. But only if you view (part of) them up close. |
#33
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Who's for 50 Megapixels?
In article , Alan Browne
says... 24 - 50MP is only 44% more resolved detail It's more than twice the pixel count. -- Alfred Molon Olympus E-series DSLRs and micro 4/3 forum at http://tech.groups.yahoo.com/group/MyOlympus/ http://myolympus.org/ photo sharing site |
#34
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Who's for 50 Megapixels?
In article , Eric Stevens
says... I am running out of room on parts of the 970 GB I have on my main computer Then get a 2TB drive. Seagate has one (2.5", 9.5mm height i.e. should fit into most notebooks except the very slim ones). -- Alfred Molon Olympus E-series DSLRs and micro 4/3 forum at http://tech.groups.yahoo.com/group/MyOlympus/ http://myolympus.org/ photo sharing site |
#35
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Who's for 50 Megapixels?
In article , Alan Browne wrote:
Davoud: Which of you will buy one of the new Canon 50.3 MP DSLRs? Why? Eric Stevens: I have just bought a Nikon D750 (24MP). I thought abot the the D810 (36MP) but decided that (a) I didn't need it and (b) I didn't want all those humongous files filling up my system when they didn't give me anything extra that I wanted. That conclusion applies in spades to 24MP vs 50MP. Quite agree. 24 -50MP is only 44% more resolved detail How did you do the math to arrive at that percentage? -- Sandman |
#36
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Who's for 50 Megapixels?
Sandman wrote:
In article , Alan Browne wrote: 24 -50MP is only 44% more resolved detail How did you do the math to arrive at that percentage? I imagine he did the same as anyone else who knows how. You divide the square root of 50 by the square root of 24. Peter. : |
#37
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Who's for 50 Megapixels?
Alfred Molon wrote:
In article , Alan Browne says... 24 - 50MP is only 44% more resolved detail It's more than twice the pixel count. Actually the resolution will be about 1.5 times. The 5D3 can resolve approximately 80 line pairs per millimeter, while the new 5DS can resolve about 121 lp/mm. Just for references sake, here is a chart of various cameras: Mfgr/Model lp/mm ========== ===== Canon 5D3 80 Nikon D800 103 Nikon D810 103 Canon 5DS 121 Canon 7DII 122 Nikon D7100 128 Nikon D3200 130 There are several points worth noting. The Canon 5D3 is a low resolution camera, relative to other recent models. The Canon 5DS is significantly (~18%), but not overwhelmingly, higher resolution than the two similar models from Nikon. While the Canon 5DS is close to the APS-C sensor in the Canon 7DII, neither are as great as the recent Nikon APS-C sensors. All of which suggests that while the 5DS is a break through for Canon, it is not in terms of the entire market. And we can almost certainly expect Nikon to replace the D810 (shortly after the D5 arrives next fall) with something that probably will have resolution even greater than the D3200. -- Floyd L. Davidson http://www.apaflo.com/ Ukpeagvik (Barrow, Alaska) |
#38
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Who's for 50 Megapixels?
In article , Alfred Molon
writes: In article , Alan Browne says... 24 - 50MP is only 44% more resolved detail It's more than twice the pixel count. Yes, but if one has twice the number of pixels, then the increase in resolution in one dimension is the square root of two, which is 1.414..., so 44% more is not far off the mark. |
#39
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Who's for 50 Megapixels?
On 2015.02.06 18:57 , Eric Stevens wrote:
On Fri, 06 Feb 2015 18:05:01 -0500, Alan Browne wrote: On 2015.02.06 17:43 , Eric Stevens wrote: On Fri, 06 Feb 2015 12:27:12 -0500, Davoud wrote: Which of you will buy one of the new Canon 50.3 MP DSLRs? Why? I have just bought a Nikon D750 (24MP). I thought abot the the D810 (36MP) but decided that (a) I didn't need it and (b) I didn't want all those humongous files filling up my system when they didn't give me anything extra that I wanted. That conclusion applies in spades to 24MP vs 50MP. Quite agree. 24 - 50MP is only 44% more resolved detail so not really noticeable for 99% of photographs that 99% of photographers do. One would also need the better lenses to take advantage of it all. As to file size, I think storage per unit of money has outpaced pixel density, generally, so no biggie there... I am running out of room on parts of the 970 GB I have on my main computer and the 1.8TB external drive is nearly full. The 500 GB shared drive on my secondary computer has already overflowed and had to have some stuff chucked off. It's getting to the stage with the various backup strategies that my computers spends as much time shifting stuff around as they do working. I don't to make things worse and I don't want to spend money on soon-to-be-obsolescent network storage. I have 10 TB of external storage. And it's coming due for an update. To be sure, some of that is redundancy (several backups, and Time Machine alternates between two external drives each backup cycle - every hour). I have business files as well that are Dropboxed (at work), so they are manually backed up here once a week to two drives and to another computer. (slightly less than a GB). Disk storage is cheap. You can also look into cloud storage but that has issues of bandwidth, at least for the first push out. -- "Your net worth to the world is usually determined by what remains after your bad habits are subtracted from your good ones." Benjamin Franklin |
#40
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Who's for 50 Megapixels?
Peter Irwin wrote:
Sandman wrote: In article , Alan Browne wrote: 24 -50MP is only 44% more resolved detail How did you do the math to arrive at that percentage? I imagine he did the same as anyone else who knows how. You divide the square root of 50 by the square root of 24. That does give how much area is increased, but it doesn't give the right numbers for resolution. The 5D3 produces an image with 5760 pixels across. The 5DS image is 8688 pixels across. Dividing those two give 1.508x the resolution. Divide either number by 2 times the sensor width (nominally 36mm, which isn't exact but is close enough) to get the number of line pairs per millimeter, which is the technically correct measure of resolution. -- Floyd L. Davidson http://www.apaflo.com/ Ukpeagvik (Barrow, Alaska) |
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