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Crop sensor...I just don't get it.
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May 9, 2012 15:53:30   #
MT Shooter Loc: Montana
 
GoofyNewfie wrote:
Nikonian72 wrote:
Do you find this FAQ or the charts (especially text in #3) confusing? http://www.uglyhedgehog.com/t-26503-1.html


I'm thinking the same thing as MT- having shot a lot of different formats, I know about cropped sensors, but think it COULD possibly be confusing to a newbie...Perhaps if there were a real image in the illustration instead of a blue circle it wouldn't be so abstract? Maybe MT's eagle doing the backstroke?


Backstroke???
I thought he had one too many Wild Turkeys!!

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May 9, 2012 15:59:26   #
GoofyNewfie Loc: Kansas City
 
MT Shooter wrote:

Backstroke???
I thought he had one too many Wild Turkeys!!


That was you!

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May 9, 2012 16:06:38   #
wlgoode Loc: Globe, AZ
 
Thank you.

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May 9, 2012 16:40:59   #
Nikonian72 Loc: Chico CA
 
MT Shooter wrote:
ward5311 wrote:
Nikonian72 wrote:
ward5311 wrote:
Hope this helps.
Nope! Instead of simplifying, you made the situation more complicated by dragging tele-converters into the answer,
which have absolutely nothing to do with the size of sensors.
Didn't take long for you to show up..you're so predictable...your liitle chart is more confusing as it gives the impression the image will be smaller...have at it man..you are one egotistical piece of work....
Actually the image IS smaller. Thats what "cropped" means. You have taken a smaller image sample of the scene offered by the lens.
quote=ward5311 quote=Nikonian72 quote=ward5311 ... (show quote)
The first chart is courtesy of MT Shooter's research. None of these charts are mine; all are public domain on the internet.

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May 9, 2012 16:57:08   #
rgstoneinsc Loc: Salem, SC
 
Many folks think that a 50mm FX lens will yield a 1.5 (Nikon) MAGNIFICATION but that is not the case.......field of view and magnification are two different issues.

The 8 foot window vs the 5 ft window example explains it best, IMHO

(less available scene, but no additional magnification)

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May 9, 2012 17:04:11   #
dar_clicks Loc: Utah
 
MT_Shooter brings up a point that is important to me. There are so many different sensor sizes now. When I see lens data given with a photo I like to see the 35 mm (full frame) equivalent given so I can have some idea of just how much tele or wide-angle was used for the shot. Then e.g., I can grasp how much "Wow!" is appropriate for how well the stabilization worked, or what results I might expect if I try a similar setup. 35 mm is ingrained in my experience. I understand it best as a lens reference point, whether digital or film is used.

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May 9, 2012 17:13:01   #
ward5311 Loc: Georgia
 
My interest was helping out a newbie..this subject can get very confusing as evidenced here...I will defer to MT as I know his knowledge far outceeds my own. The chart is confusing to newbies and I tried to draw a simple analogy. Thanks to Goofy for his previous help in understanding this issue. I think any newbie should now have enough references now to help them understand. I will attempt no further help on this subject.

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May 9, 2012 17:30:14   #
NIKONUT Loc: San Diego
 
How about this!!! 50mm lens on FX body = "normal image"
50mm lens on DX body = "mini-telephoto image".

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May 9, 2012 17:42:53   #
Nikonian72 Loc: Chico CA
 
NIKONUT wrote:
How about this!!! 50mm lens on FX body = "normal image". 50mm lens on DX body = "mini-telephoto image".
Close enough.

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May 9, 2012 18:01:22   #
GoofyNewfie Loc: Kansas City
 
ward5311 wrote:
My interest was helping out a newbie..this subject can get very confusing as evidenced here...I will defer to MT as I know his knowledge far outceeds my own. The chart is confusing to newbies and I tried to draw a simple analogy. Thanks to Goofy for his previous help in understanding this issue. I think any newbie should now have enough references now to help them understand. I will attempt no further help on this subject.


but you know it will come up again...

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May 9, 2012 18:05:12   #
ward5311 Loc: Georgia
 
GoofyNewfie wrote:
ward5311 wrote:
My interest was helping out a newbie..this subject can get very confusing as evidenced here...I will defer to MT as I know his knowledge far outceeds my own. The chart is confusing to newbies and I tried to draw a simple analogy. Thanks to Goofy for his previous help in understanding this issue. I think any newbie should now have enough references now to help them understand. I will attempt no further help on this subject.


but you know it will come up again...


You're right Goofy..but I shall not pitch in to try and help..I'm done.

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May 9, 2012 18:07:55   #
GoofyNewfie Loc: Kansas City
 
ward5311 wrote:

You're right Goofy..but I shall not pitch in to try and help..I'm done.


Re: Your avitar: Loved the movie but can't remember- did it take place in Georgia?

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May 9, 2012 18:09:34   #
ward5311 Loc: Georgia
 
GoofyNewfie wrote:
ward5311 wrote:

You're right Goofy..but I shall not pitch in to try and help..I'm done.


Re: Your avitar: Loved the movie but can't remember- did it take place in Georgia?


Bayou Labatrie...A L A B A M A.... some parts were filmed in Savannah GA.....as Forrest Gump would say
"stupid is as stupid does"...which is a good way to end this topic.

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May 9, 2012 18:13:41   #
GoofyNewfie Loc: Kansas City
 
ward5311 wrote:
GoofyNewfie wrote:
ward5311 wrote:

You're right Goofy..but I shall not pitch in to try and help..I'm done.


Re: Your avitar: Loved the movie but can't remember- did it take place in Georgia?


Bayou Labatrie...A L A B A M A.... some parts were filmed in Savannah GA.....as Forrest Gump would say
"stupid is as stupid does"...which is a good way to end this topic.


LOL!!!! I remember now.Thanks

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May 9, 2012 18:25:37   #
oldtool2 Loc: South Jersey
 
MT Shooter wrote:
GoofyNewfie wrote:
MT Shooter wrote:

That is exactly the point of confusion. The image is NOT magnified at all, it is exactly the same with either sensor as a 50mm lens is still a 50mm lens on ANY sensor. Its just that the smaller sensor is recording only a section out of the middle of that image and this gives the "Illusion" of magnification. That is exactly why there is no change in relative aperture between the sensors, the lens has not changed at all, and you have not added a teleconverter to it.


MT knows his stuff!

:thumbup:
quote=MT Shooter br That is exactly the point o... (show quote)


Thank you Goofy, I knew we were not at odds anywhere, just a matter of terminology is all.
Sometimes people just don't fly right!
quote=GoofyNewfie quote=MT Shooter br That is ... (show quote)


MT, I love that eagle! Did you reverse it or actually capture it that way?

Jim D

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