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Fast Glass?
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Jun 9, 2018 11:32:22   #
Bultaco Loc: Aiken, SC
 
Some may find this interesting, I did.

https://backcountrygallery.com/amazing-high-iso-the-end-of-fast-glass/

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Jun 9, 2018 11:43:43   #
ken_stern Loc: Yorba Linda, Ca
 
Why I like fast glass -----
Reminds me of an old automotive term --- There is no replacement for displacement

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Jun 9, 2018 11:51:36   #
rmalarz Loc: Tempe, Arizona
 
I agree with parts of the article. In its isolated way, it's correct. However, a side effect of faster lenses is a shallower depth of field. Thus, for portrait work, an 85mm f/1.8 Nikkor is preferable to, let's say, an f/4 which would naturally have a greater depth of field. So, "faster" glass does have an application, but with modern digital cameras, it's not a needed as in the past.
--Bob
Bultaco wrote:

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Jun 9, 2018 12:04:02   #
AndyH Loc: Massachusetts and New Hampshire
 
rmalarz wrote:
I agree with parts of the article. In its isolated way, it's correct. However, a side effect of faster lenses is a shallower depth of field. Thus, for portrait work, an 85mm f/1.8 Nikkor is preferable to, let's say, an f/4 which would naturally have a greater depth of field. So, "faster" glass does have an application, but with modern digital cameras, it's not a needed as in the past.
--Bob


Good advice!

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Jun 9, 2018 12:10:08   #
Orson Burleigh Loc: Annapolis, Maryland, USA
 
rmalarz wrote:
I agree with parts of the article. In its isolated way, it's correct. However, a side effect of faster lenses is a shallower depth of field. Thus, for portrait work, an 85mm f/1.8 Nikkor is preferable to, let's say, an f/4 which would naturally have a greater depth of field. So, "faster" glass does have an application, but with modern digital cameras, it's not a needed as in the past.
--Bob



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Jun 9, 2018 12:51:42   #
SharpShooter Loc: NorCal
 
rmalarz wrote:
I agree with parts of the article. In its isolated way, it's correct. However, a side effect of faster lenses is a shallower depth of field. Thus, for portrait work, an 85mm f/1.8 Nikkor is preferable to, let's say, an f/4 which would naturally have a greater depth of field. So, "faster" glass does have an application, but with modern digital cameras, it's not a needed as in the past.
--Bob


That would depend entirely on the photography.
We hear all the time how GOOD new cameras shoot at high ISO's. There will NEVER be a good substitute for fast glass. Fast ISO is just another tool in the bag in addition to FAST GLASS. One is neither better than the other or preferable, at times. It's always about the photography end result, and getting that end result as WE dictate, not what is dictated by the equipment, though yes, the equipment will always set the parameters.
TOO often high ISO is little more than a crutch to justify not spending the money on the proper lenses and getting truly good results, but good enough!
100 ISO will ALWAYS have less noise than 400, let alone ISO 2000!!! Is this where everybody starts to upload over-processed images to prove how bad they really are???
THERE IS NO SUBSTITUTE FOR FAST GLASS!!!
SS

200mm, f2.0, ISO 200, ss2000
200mm,  f2.0,  ISO 200, ss2000...
(Download)

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Jun 9, 2018 13:46:59   #
ken_stern Loc: Yorba Linda, Ca
 
rmalarz wrote:
I agree with parts of the article. In its isolated way, it's correct. However, a side effect of faster lenses is a shallower depth of field. Thus, for portrait work, an 85mm f/1.8 Nikkor is preferable to, let's say, an f/4 which would naturally have a greater depth of field. So, "faster" glass does have an application, but with modern digital cameras, it's not a needed as in the past.
--Bob


That's a totally true & honest statement ----
However I assume it is not meant to be an either-or -- It's at least in my opinion always better to open up the window & let in more light or at least have the option to do so then to rely upon just increasing the volume --- With a fast vs slow lens no matter what the situation lighting wise is you should end up employing a lower volume (ISO) with a bigger window lens and as I understand it that should, in theory, improve your chances of getting a better-looking photo ---

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Jun 9, 2018 13:51:10   #
BebuLamar
 
Fast glasses have their uses but not for me as I need to take pictures in low light but don't want the shallow DOF.

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Jun 9, 2018 14:15:41   #
SharpShooter Loc: NorCal
 
BebuLamar wrote:
Fast glasses have their uses but not for me as I need to take pictures in low light but don't want the shallow DOF.


Fast glass also allow your camera to focus faster and MORE accurately in that same light, whether you ever use the speed or not, getting you more keepers!!!
SS

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Jun 9, 2018 15:48:40   #
ken_stern Loc: Yorba Linda, Ca
 
BebuLamar wrote:
Fast glasses have their uses but not for me as I need to take pictures in low light but don't want the shallow DOF.


Have you considered the value of Time --- reduce the ISO - put the camera on a tripod & take a longer exposure -- Then compare your photos -- high ISO vs low/Lower ISO --- In either case you don't need to buy Fast Glass

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Jun 9, 2018 16:32:33   #
Bultaco Loc: Aiken, SC
 
SharpShooter wrote:
That would depend entirely on the photography.
We hear all the time how GOOD new cameras shoot at high ISO's. There will NEVER be a good substitute for fast glass. Fast ISO is just another tool in the bag in addition to FAST GLASS. One is neither better than the other or preferable, at times. It's always about the photography end result, and getting that end result as WE dictate, not what is dictated by the equipment, though yes, the equipment will always set the parameters.
TOO often high ISO is little more than a crutch to justify not spending the money on the proper lenses and getting truly good results, but good enough!
100 ISO will ALWAYS have less noise than 400, let alone ISO 2000!!! Is this where everybody starts to upload over-processed images to prove how bad they really are???
THERE IS NO SUBSTITUTE FOR FAST GLASS!!!
SS
That would depend entirely on the photography. br ... (show quote)

yons

I shot wildlife, can you afford a 600m f2, if they made one, I can't. Everyone's opinions are based on what they like to shot.

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Jun 9, 2018 17:13:28   #
ken_stern Loc: Yorba Linda, Ca
 
Bultaco wrote:
yons

I shot wildlife, can you afford a 600m f2, if they made one, I can't. Everyone's opinions are based on what they like to shot.


600m 2.0 -- Now -- That's what we called a crew-served weapon when I was in the USMC

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Jun 9, 2018 17:17:15   #
Rich1939 Loc: Pike County Penna.
 
SharpShooter wrote:
Fast glass also allow your camera to focus faster and MORE accurately in that same light, whether you ever use the speed or not, getting you more keepers!!!
SS



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Jun 9, 2018 19:34:55   #
JohnSwanda Loc: San Francisco
 
ken_stern wrote:
Have you considered the value of Time --- reduce the ISO - put the camera on a tripod & take a longer exposure -- Then compare your photos -- high ISO vs low/Lower ISO --- In either case you don't need to buy Fast Glass


unless you often shoot moving subjects.

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Jun 9, 2018 19:52:05   #
BebuLamar
 
SharpShooter wrote:
Fast glass also allow your camera to focus faster and MORE accurately in that same light, whether you ever use the speed or not, getting you more keepers!!!
SS


Back in the late 70's and early 80's I was quite good at focusing manually as I was interested in fast moving subjects. As I get older and can't move as fast it seems that my subjects move slower too so there is no need for very fast AF.

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