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Konica AR 6.3/300mm Fluorite
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PostPosted: Fri Jan 21, 2022 7:15 pm    Post subject: Konica AR 6.3/300mm Fluorite Reply with quote

Most of us probably didn't have the chance to get their hands on one of these rare birds, let alone to test one thoroughly.

Some weeks ago - in a local auction and hidden among other Konica stuff including a Konica AR 2.8/21mm lens - there was a lens which I suspected to be the mystery Konica fluorite lens. I noticed that another collector friend already was bidding on the lot, and so I refrained from inflating the price Wink. He got the set, and shortly I'll be able to compare his newly acquired Konica AR 6.3/300mm Fluorite to some of my best "slow" 300mm lenses such as the Canon FL 5.6/300mm Fluorite, the Nikkor Ai 4.5/300mm ED (non-IF!), and the Mamyia Sekor C 5.6/300mm ULD.

Now my simple question: Should I include another lens and if so, which one?

S


PostPosted: Sat Jan 22, 2022 7:03 pm    Post subject: Re: Konica AR 6.3/300mm Fluorite Reply with quote

stevemark wrote:
. . .

Now my simple question: Should I include another lens and if so, which one?

S


Just for the sake of symmetry, Tele-Takumar 300mm F/6.3 Smile :
https://www.pentaxforums.com/lensreviews/Tele-Takumar-300mm-F6.3.html

And this one is apparently super scarce, but just in case... Wink :
https://www.pentaxforums.com/lensreviews/Ultra-Achromatic-Takumar-300mm-F5.6.html


PostPosted: Sat Jan 22, 2022 7:54 pm    Post subject: Reply with quote

Tamron SP Adaptall-2 60-300mm 1:3.8-5.4


PostPosted: Sat Jan 22, 2022 8:31 pm    Post subject: Reply with quote

I was unaware of its existence until today. Thank you!


PostPosted: Sat Jan 22, 2022 9:18 pm    Post subject: Reply with quote

D1N0 wrote:
Tamron SP Adaptall-2 60-300mm 1:3.8-5.4


And some sort of post 2000s 70-300/100-300.


PostPosted: Sat Jan 22, 2022 9:56 pm    Post subject: Reply with quote

If you have one, the prosumer version of the 300 f 4.5 A/I-s, in non-E/D, non I/F.
Mine appears to have a bit of oil on one of the internal glass surfaces.
It makes it's self visible in low contrast situations.

-D.S.


PostPosted: Sun Jan 23, 2022 2:07 am    Post subject: Reply with quote

55 wrote:

Just for the sake of symmetry, Tele-Takumar 300mm F/6.3 Smile :
https://www.pentaxforums.com/lensreviews/Tele-Takumar-300mm-F6.3.html

And this one is apparently super scarce, but just in case... Wink :
https://www.pentaxforums.com/lensreviews/Ultra-Achromatic-Takumar-300mm-F5.6.html

Sadly, I have neither of those Wink ...

D1N0 wrote:
Tamron SP Adaptall-2 60-300mm 1:3.8-5.4

That one's here ...

eggplant wrote:
And some sort of post 2000s 70-300/100-300.

I don't really have one ... unless you consider the latest Minolta AF lenses as appropriate ... (I wouldn't)

Doc Sharptail wrote:
If you have one, the prosumer version of the 300 f 4.5 A/I-s, in non-E/D, non I/F.
-D.S.

Yep, that's possible!

S