Resolution Chart
Mar 13, 2019 14:19:52 #
Cleaning up some old files I came across a 35mm resolution chart. It was used to check out if one
of my enlargers to see if it was still level and square. The are some available on the web for as much as
a hundred dollars but others are there for those who do not need such razor edge accuracy. My
interest was never optics since I used cameras and enlargers as tools not scientific test benches.
If you wonder what your camera's focus and sharpness is then take a look at one of those charts
and download it. You could be in for some surprises.
of my enlargers to see if it was still level and square. The are some available on the web for as much as
a hundred dollars but others are there for those who do not need such razor edge accuracy. My
interest was never optics since I used cameras and enlargers as tools not scientific test benches.
If you wonder what your camera's focus and sharpness is then take a look at one of those charts
and download it. You could be in for some surprises.
Mar 13, 2019 19:19:07 #
Harry0
Loc: Gardena, Cal
https://bealecorner.org/red/test-patterns/
But, back in the day (50-60 years ago ) We'd try newspapers. Tape the front page up, back up 10 or 20 feet, and see what you can focus on. Can you read it? Some of those old euro light yellow lenses had really good contrast, but almost kinda good sharpness.
But, back in the day (50-60 years ago ) We'd try newspapers. Tape the front page up, back up 10 or 20 feet, and see what you can focus on. Can you read it? Some of those old euro light yellow lenses had really good contrast, but almost kinda good sharpness.
Mar 14, 2019 07:06:22 #
Mar 14, 2019 07:56:03 #
jerryc41 wrote:
Remember when those testy patterns were common on TV?
I remember.
In 1971 at Penn State I lived off campus in what could be called a commune. We had a tradition of occasionally making treats, cookies, brownies, etc..., and leaving them out for the others. One night I came in late, saw a tray of brownies and had a couple. They were good. I had a couple more. Sometime around 3:00 am one of the others came in and yelled "Who ate my hash brownies!!!" I turned to tell him it was me, but could not exert that much effort. I went back to watching the test pattern. It was really interesting.
If you need that explained, you are either very young or have an appropriately hazy recollection of the late 60's and early 70's.
Mar 14, 2019 10:16:55 #
Used to have a flock of the 1955 AF test targets for testing lens sharpness/resolution. The newer charts are much more fun.
Mar 14, 2019 12:40:58 #
Mar 14, 2019 12:45:28 #
jerryc41 wrote:
Remember when those testy patterns were common on TV?
YES!!! For reasons I have never understood, most of them included an image of an Indian.
Now we can be educated:
https://en.wikipedia.org/wiki/Indian-head_test_pattern >Alan
Mar 14, 2019 13:02:18 #
dsmeltz wrote:
I remember. br br In 1971 at Penn State I lived o... (show quote)
Waiting for the cavalry to catch up with the Indian? That sure was a slow western!!
Mar 14, 2019 13:27:27 #
SteveR wrote:
Waiting for the cavalry to catch up with the Indian? That sure was a slow western!!
No man. He wasn't trying to get away from the cavalry. We were just hangin' out and talkin. He was telling me about the latest issue of The Fabulous Furry Freak Brothers.
Mar 14, 2019 15:35:17 #
Mar 27, 2019 06:44:18 #
Harry0
Loc: Gardena, Cal
dsmeltz wrote:
I remember.
In 1971 at Penn State I lived off campus in what could be called a commune. .
In 1971 at Penn State I lived off campus in what could be called a commune. .
In 1971 I lived at 7th & Miflin, then moved to 2nd & Chestnut.
Partied up and down Electric Ave until the Man shut it down.
I could have lived at South Street, then the Yups took over.
I did live at the Doors for a little bit, but I got tired of the game of waiting for a group to leave at one time and scattering so the cops wouldn't get everybody.
I loved the 9th St market- but the Man got that too. Also.
Mar 27, 2019 13:09:11 #
dsmeltz wrote:
No man. He wasn't trying to get away from the cavalry. We were just hangin' out and talkin. He was telling me about the latest issue of The Fabulous Furry Freak Brothers.
My favorite quote from FFFB, "Dope will get you through times of no money, better than money will get you through times of no dope!"
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