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For Sale: tamron adaptall 107B 300/2.8
Listed: 09-05-2019, 07:23 AM Total Price: 450 Currency: USD Item Location: India City or State: mumbai Shipping Destinations: Worldwide 

PentaxForums.com Marketplace Listing

Item for Sale
tamron adaptall 107B 300/2.8

Asking Price
450.00 USD

Item Location
mumbai (India)

Item Description
tamron adaptall 107B 300/2.8
Cosmetically good
optics no fungus very few dust save front glass where i see some specs.
reason for selling - hardly use it, i have pentax F* 300/4.5
love to see a nice home.
hope to post some more pictures later if required.

Are you the original owner of the item being sold?
Yes

Are you selling or trading this item?
Selling

Item Condition (Key)
Used
Fair

Shipping Destinations
Worldwide

Shipping Charge
30

Shipping Services
India Post EMS

Accepted Payment Types
PayPal

Return Policy & Additional Details
none, buyer pays shipping both ways

Please send me a private message if interested in the item!

---------- Post added 09-07-2019 at 09:04 AM ----------

Tamron adaptall 107B | Flickr
album with more photos

---------- Post added 09-07-2019 at 09:07 AM ----------

all pictures taken are hand held

Attached Images
 


Last edited by uttam.hathi; 09-08-2019 at 09:03 AM. Reason: adding picture
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09-15-2019, 03:44 AM   #2
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bump up
10-02-2019, 08:00 PM   #3
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Could you please include some pictures of the glass as well?
10-03-2019, 05:36 AM   #4
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Pair it with the f 1.7x adapter for a semi autofocus 500mm f5...

10-04-2019, 07:06 AM   #5
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QuoteOriginally posted by UncleVanya Quote
Pair it with the f 1.7x adapter for a semi autofocus 500mm f5...
Mind if I ask what you mean by "semi" auto-focus? I have the Tamron 1.4x adapter - would that accomplish the same thing?
10-04-2019, 10:54 AM   #6
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QuoteOriginally posted by Reality_Check Quote
Mind if I ask what you mean by "semi" auto-focus? I have the Tamron 1.4x adapter - would that accomplish the same thing?
No. The Pentax f 1.7x is a specialized device. It autofocuses non-af lenses but typically you need to focus partially since the range of focus isn't able to cover every distance of every lens.
10-06-2019, 12:27 PM   #7
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QuoteOriginally posted by UncleVanya Quote
No. The Pentax f 1.7x is a specialized device. It autofocuses non-af lenses but typically you need to focus partially since the range of focus isn't able to cover every distance of every lens.
Thank you for the explanation. I appreciate it! I'll consider selling my Tamron 1.4x and look to purchase the Pentax 1.7x. That being said, I would still love to see some pictures of the glass in this lens :-)
10-06-2019, 02:36 PM   #8
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QuoteOriginally posted by Reality_Check Quote
Thank you for the explanation. I appreciate it! I'll consider selling my Tamron 1.4x and look to purchase the Pentax 1.7x. That being said, I would still love to see some pictures of the glass in this lens :-)
I would keep both unless you are sold on the 1.7x. The 1.7x is an acquired taste. It is slower and longer than the 1.4x and really useful for niche things. It isn't a panacea for all things however. It does not work as well as the native lens - there will be some minor loss of quality. The loss varies with higher quality lenses being more able to withstand the adaptor with less loss.

10-06-2019, 03:07 PM   #9
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You can use both of the TC's with a 300/2.8 and get 700mm...



Tamron Adaptall 300/2.8 + Pentax A 1.4x-L + 1.7x AFA (must be in that order to get AF)
10-06-2019, 04:54 PM   #10
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QuoteOriginally posted by luftfluss Quote
You can use both of the TC's with a 300/2.8 and get 700mm...



Tamron Adaptall 300/2.8 + Pentax A 1.4x-L + 1.7x AFA (must be in that order to get AF)
Great example and yes I've done it on the da 200.
10-06-2019, 07:05 PM   #11
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all autofocus needs gear aspects which moves optical elements, a non auto-focus lens will not have this feature, so have failed to understand how a converter helps in auto focusing
10-06-2019, 07:15 PM   #12
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QuoteOriginally posted by uttam.hathi Quote
all autofocus needs gear aspects which moves optical elements, a non auto-focus lens will not have this feature, so have failed to understand how a converter helps in auto focusing
Are you not familiar with the legendary SMC Pentax-F 1.7X AF Adapter, which not only is a teleconverter but also provides limited autofocus capability to manual focus lenses? A 300/2.8 lens is an ideal match for it.
10-06-2019, 08:50 PM   #13
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OP - could you please pose some photos of this lens that show the glass, front and back?
10-06-2019, 09:07 PM   #14
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.
In his original post he had this link to 12 photos, which do include 4 nice images of the front element. Tamron adaptall 107B | Flickr


However, there were no photos of the rear mount or the rear element in that he linked to.
10-07-2019, 06:24 AM   #15
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QuoteOriginally posted by Fenwoodian Quote
.
In his original post he had this link to 12 photos, which do include 4 nice images of the front element. Tamron adaptall 107B | Flickr


However, there were no photos of the rear mount or the rear element in that he linked to.
I totally missed that! Thank you for pointing out the obvious to me :-)
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