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New camera, new lens
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Nov 24, 2022 14:09:54   #
bobnewnan22 Loc: Las Vegas, NV
 
I've read often that a TC on a zoom lens is not ideal so I did some experimenting. I have a new Nikon 7ii, a Nikon 100-400mm and a 2x TC. Set the camera in DX mode so the effective results with TC at a native 100mm is 300mm. Then set lens to 400mm native for a net results of 1200mm. First shot at 300mm, f10, 1/80, ISO 64. Second shot 1200mm, f11, 1/80, ISO 64. Both handheld. Both cropped to 200ppi and processed with Topaz Denoise AI. Also did Topaz Sharpen AI but thought the results to be the same. Of course if it were a picture I wanted to hang on the wall I would use a tripod but I wanted to see what a hand held at 1200mm would look like. So now I know.

300mm
300mm...

1200mm
1200mm...

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Nov 24, 2022 14:54:47   #
Sinewsworn Loc: Port Orchard, WA
 
bobnewnan22 wrote:
I've read often that a TC on a zoom lens is not ideal so I did some experimenting. I have a new Nikon 7ii, a Nikon 100-400mm and a 2x TC. Set the camera in DX mode so the effective results with TC at a native 100mm is 300mm. Then set lens to 400mm native for a net results of 1200mm. First shot at 300mm, f10, 1/80, ISO 64. Second shot 1200mm, f11, 1/80, ISO 64. Both handheld. Both cropped to 200ppi and processed with Topaz Denoise AI. Also did Topaz Sharpen AI but thought the results to be the same. Of course if it were a picture I wanted to hang on the wall I would use a tripod but I wanted to see what a hand held at 1200mm would look like. So now I know.
I've read often that a TC on a zoom lens is not id... (show quote)


Are you asking for some input on quality? If so I would say that both images look a bit soft. I have a Z 100-400 and use it on a Z9. I find that images can be soft if the shutter speeds fall below 400 handheld of course. I am not sure the addition of a TC helped matters.

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Nov 24, 2022 15:27:55   #
CHG_CANON Loc: the Windy City
 
If you want to demonstrate you success or failure, you'll post and store your example images. Rather than creating wasted space thumbnails and wasted time reading your post. If this post had any amount of seriousness, create a replay and store the images.



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Nov 25, 2022 06:32:31   #
billnikon Loc: Pennsylvania/Ohio/Florida/Maui/Oregon/Vermont
 
bobnewnan22 wrote:
I've read often that a TC on a zoom lens is not ideal so I did some experimenting. I have a new Nikon 7ii, a Nikon 100-400mm and a 2x TC. Set the camera in DX mode so the effective results with TC at a native 100mm is 300mm. Then set lens to 400mm native for a net results of 1200mm. First shot at 300mm, f10, 1/80, ISO 64. Second shot 1200mm, f11, 1/80, ISO 64. Both handheld. Both cropped to 200ppi and processed with Topaz Denoise AI. Also did Topaz Sharpen AI but thought the results to be the same. Of course if it were a picture I wanted to hang on the wall I would use a tripod but I wanted to see what a hand held at 1200mm would look like. So now I know.
I've read often that a TC on a zoom lens is not id... (show quote)


A TC has NEVER improved an image on it's own.

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Nov 25, 2022 07:52:13   #
jerryc41 Loc: Catskill Mts of NY
 
A teleconverter is much cheaper than a long lens, and it produces very good results. People don't usually magnify their images several hundred times, so a TC is basically as good as a lens. A few years ago, I posted pictures taken with and without a converter (1.4), and people couldn't tell the difference.

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Nov 25, 2022 08:30:28   #
starlifter Loc: Towson, MD
 
bobnewnan22 wrote:
I've read often that a TC on a zoom lens is not ideal so I did some experimenting. I have a new Nikon 7ii, a Nikon 100-400mm and a 2x TC. Set the camera in DX mode so the effective results with TC at a native 100mm is 300mm. Then set lens to 400mm native for a net results of 1200mm. First shot at 300mm, f10, 1/80, ISO 64. Second shot 1200mm, f11, 1/80, ISO 64. Both handheld. Both cropped to 200ppi and processed with Topaz Denoise AI. Also did Topaz Sharpen AI but thought the results to be the same. Of course if it were a picture I wanted to hang on the wall I would use a tripod but I wanted to see what a hand held at 1200mm would look like. So now I know.
I've read often that a TC on a zoom lens is not id... (show quote)


I don't think they look bad at all. But then it's a stationary subject. Still I think the IQ is quite good despite all the manipulation.

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Nov 25, 2022 08:42:11   #
StanMac Loc: Tennessee
 
jerryc41 wrote:
A teleconverter is much cheaper than a long lens, and it produces very good results. People don't usually magnify their images several hundred times, so a TC is basically as good as a lens. A few years ago, I posted pictures taken with and without a converter (1.4), and people couldn't tell the difference.


I agree, Jerry. Pixel peepers will find that a TC will degrade image quality to a degree, but images viewed at normal viewing distances look fine. Us shallow pocket hobbyist photogs appreciate the focal length advantage TCs give us at a reasonable expense.

Stan

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Nov 25, 2022 09:07:46   #
CHG_CANON Loc: the Windy City
 
You can peek these examples, and numerous others I've posted over the years. https://www.uglyhedgehog.com/t-735936-1.html

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Nov 25, 2022 09:21:40   #
jerryc41 Loc: Catskill Mts of NY
 
StanMac wrote:
I agree, Jerry. Pixel peepers will find that a TC will degrade image quality to a degree, but images viewed at normal viewing distances look fine. Us shallow pocket hobbyist photogs appreciate the focal length advantage TCs give us at a reasonable expense.

Stan


"...shallow pocket hobbyist..." That is a great term! Some people order a camera as soon as it is ready for pre-order. Others wait for used and refurbs.

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Nov 25, 2022 09:39:06   #
Architect1776 Loc: In my mind
 
bobnewnan22 wrote:
I've read often that a TC on a zoom lens is not ideal so I did some experimenting. I have a new Nikon 7ii, a Nikon 100-400mm and a 2x TC. Set the camera in DX mode so the effective results with TC at a native 100mm is 300mm. Then set lens to 400mm native for a net results of 1200mm. First shot at 300mm, f10, 1/80, ISO 64. Second shot 1200mm, f11, 1/80, ISO 64. Both handheld. Both cropped to 200ppi and processed with Topaz Denoise AI. Also did Topaz Sharpen AI but thought the results to be the same. Of course if it were a picture I wanted to hang on the wall I would use a tripod but I wanted to see what a hand held at 1200mm would look like. So now I know.
I've read often that a TC on a zoom lens is not id... (show quote)



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Nov 25, 2022 09:41:50   #
BebuLamar
 
jerryc41 wrote:
"...shallow pocket hobbyist..." That is a great term! Some people order a camera as soon as it is ready for pre-order. Others wait for used and refurbs.


When I want to buy a camera model I buy it at the point in time when I can get a new one (no used, no refurbished) at the lowest price.

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Nov 25, 2022 09:59:21   #
olemikey Loc: 6 mile creek, Spacecoast Florida
 
Another pointless argument to me - the "handheld" photos attached and viewed normally are just fine for what they are and what they represent - pixel peeping or not, viewed at normal distances they seem fine.

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Nov 25, 2022 12:27:12   #
davyboy Loc: Anoka Mn.
 
bobnewnan22 wrote:
I've read often that a TC on a zoom lens is not ideal so I did some experimenting. I have a new Nikon 7ii, a Nikon 100-400mm and a 2x TC. Set the camera in DX mode so the effective results with TC at a native 100mm is 300mm. Then set lens to 400mm native for a net results of 1200mm. First shot at 300mm, f10, 1/80, ISO 64. Second shot 1200mm, f11, 1/80, ISO 64. Both handheld. Both cropped to 200ppi and processed with Topaz Denoise AI. Also did Topaz Sharpen AI but thought the results to be the same. Of course if it were a picture I wanted to hang on the wall I would use a tripod but I wanted to see what a hand held at 1200mm would look like. So now I know.
I've read often that a TC on a zoom lens is not id... (show quote)


Looks good and plenty sharp to me. I don’t see any real softness

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Nov 25, 2022 12:29:35   #
davyboy Loc: Anoka Mn.
 
billnikon wrote:
A TC has NEVER improved an image on it's own.


Maybe the intent is not to meant to improve but to maintain the quality and sharpness

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Nov 25, 2022 12:36:55   #
bobnewnan22 Loc: Las Vegas, NV
 
Note the word "experiment" I just wanted to see the difference and check out the accuracy. No big deal, sorry some got their panties in a wad.

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