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Pancolart
Joined: 04 Feb 2008
Posts: 3704
Location: Slovenia, EU
Expire: 2013-11-18
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 Posted: Sun May 01, 2016 3:04 pm Post subject: Zeiss Werra Cardinar 4/100 to F3.5 |
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Pancolart wrote:
I was wondering did anyone hacked the F4 limit perhaps? It should be possible but
i don't want to invent the procedure  .
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calvin83
Joined: 12 Apr 2009
Posts: 7555
Location: Hong Kong
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| Posted: Sun May 01, 2016 3:11 pm Post subject: |
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calvin83 wrote:
What is the reason you think it can be hacked to F3.5?
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Pancolart
Joined: 04 Feb 2008
Posts: 3704
Location: Slovenia, EU
Expire: 2013-11-18
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| Posted: Sun May 01, 2016 5:43 pm Post subject: |
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Pancolart wrote:
| calvin83 wrote: |
| What is the reason you think it can be hacked to F3.5? |
Aperture does not open fully by default. It is not even forming a circle. The most destructive way would be to remove
the aperture altogether (which i certainly do not endorse) but there surely is an F3.5 option.
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calvin83
Joined: 12 Apr 2009
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Location: Hong Kong
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| Posted: Sun May 01, 2016 6:18 pm Post subject: |
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calvin83 wrote:
You need to check the shape of the circle of confusion, not the shape of the aperture. If the OOF highlights are 'perfectly' round, it means the aperture is not blocking the light. If the OOF highlights are not 'perfectly' round and you can see the shape of the aperture, it means the aperture is blocking some of the light and the modification might be feasible.
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Pancolart
Joined: 04 Feb 2008
Posts: 3704
Location: Slovenia, EU
Expire: 2013-11-18
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| Posted: Sun May 01, 2016 8:20 pm Post subject: |
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Pancolart wrote:
You have a point. I'll check.
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