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11-07-2010, 07:48 AM   #1
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[SOLD] SMC-F 50mm F/1.7 - $215.00 shipped (Worldwide)

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Item for Sale
SMC-F 50mm F/1.7 - $215.00 shipped SOLD PENDING PAYMENT

Asking Price
215.00 Shipped CONUS

Item Location
Connecticut, USA

Item Description
SMC-F 50mm F/1.7 - $215.00 shipped

Photos of lens to follow tonight.

The lens is in excellent condition.

Cosmetic condition is nearly perfect. There are some small hints of handling here and there but nothing significant. Specifically, there is are a couple of spots of thin paint on the front, inside the filter ring. I received the lens like this. I have tried to capture this in the photographs.

Optically, the lens appears to be perfect. Certainly no haze, fungus, chips, picks, imperfections or scratches.

Mechanically this lens is perfect. AF is fast and accurate, the aperture is "snappy," there is an absence of oil on the blades, and the aperture ring clicks smartly into place. The manual focusing ring is well damped, and without any hitches or roughness.

Overall Excellent. I am selling this lens because I found and purchased the FA 50mm f/1.7 version of this lens which is relatively rare.

Lens comes with a rear cap ad the original front cap.

Terms: Payment via PayPal. Shipped upon clearing of payment via USPS Priority Mail/Insured/Delivery Confirmation. Buyer may inspect and return the lens withing four (4) days of receipt; return shipping to be borne by buyer unless the lens is significantly not as described or is DOA.

Photos











-- Discussion

The F 50mm f/1.7 is generally regarded as being sharper than the f/1.4 up to f/2.8. MTF data for the two lenses:

F 50mm f1.7 Weighted MTF 50 mm: f1.7 0.65 | f2 0.71 | f2.8 0.75 | f4 0.82 | f8 0.86
FA 50mm f1.4 Weighted MTF 50 mm: f1.4 0.50 | f2 0.66 | f2.8 0.75 | f4 0.82 | f8 0.84

The following links should provide the uninitiated with some interesting reading:

https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/16753-thoughts-fa-50mm-1-7-a.html

https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/81528-fa50mm-f...mm-f1-7-a.html

Some interesting trivia here is that this lens is NOT a downmarket F/FA 50mm f/1.4. The optical formula for this lens was derived from the optical formula for the Takuma 55mm f/1.8. The optical formula for the 1.4 is derived from the formula for the Takumar 50mm f/1.4.

Given it's heritage in the 55mm f/1,8, the f/1.7 can easily trace its lineage back to the 55mm lens produced in the pre-set days. This line was perfected in the lens released as the Auto-Takumar Zebra 55mm 1.8 sold exclusively with the Pentax "K" of 1958.

F/FA 50mm f/1.7 and Super Takumar 55 f/1.8



F/FA and Super Takumar 50mm f/1.4...



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

Are you selling or trading this item?
Selling

Item Condition (Key)
Used
Excellent

Shipping Destinations
Worldwide

Shipping Charge
Included US, else please PM for quote

Shipping Services
USPS Priority, Insured, Delivery confirmation

Accepted Payment Types
PayPal Check/Money Order

Return Policy & Additional Details
Seven (7) days, return postage at the expense of buyer unless lens arrives DOA or significantly not as described.

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


Last edited by woof; 11-09-2010 at 08:10 PM.
11-07-2010, 07:51 AM   #2
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Your post is confusing. Are you selling a 1.7 or a 1.4?
11-07-2010, 09:12 AM   #3
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Found your discussion interesting and thought provoking. I have the A 50 f1.7 version and wish I could justify to going to auto; it's a fantasic lens.
11-07-2010, 09:13 AM   #4
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QuoteOriginally posted by cloudphreak Quote
Your post is confusing. Are you selling a 1.7 or a 1.4?
It's pretty clear he's selling the F50/1.7.

11-07-2010, 09:36 AM   #5
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QuoteOriginally posted by cloudphreak Quote
Your post is confusing. Are you selling a 1.7 or a 1.4?
Sorry for the confusion. I am selling an F 50mm f/1.7.

The reason i am selling it is that I tracked down and purchased the rarer FA 50mm f/1.7 version of the lens.

woof!
11-07-2010, 06:31 PM   #6
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QuoteOriginally posted by woof Quote
Sorry for the confusion. I am selling an F 50mm f/1.7.

The reason i am selling it is that I tracked down and purchased the rarer FA 50mm f/1.7 version of the lens.

woof!
I just sold one of those FA's on the forum, they are quite nice and much rarer then the F's.
11-07-2010, 10:08 PM   #7
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QuoteOriginally posted by barbosas Quote
I just sold one of those FA's on the forum, they are quite nice and much rarer then the F's.
The F and FA are the same optical formula. The F is a tiny bit more compact.
11-08-2010, 02:03 PM   #8
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pm sent....

11-08-2010, 09:16 PM   #9
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PMs answered. There are a couple of prospective buyers at present, but bump for added photos.
11-09-2010, 05:42 AM   #10
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I find that your MTF data is consistent with my experience. Where did you get the info?

This lens should make its new owner very, very happy!
11-09-2010, 07:41 AM   #11
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QuoteOriginally posted by bdery Quote
I find that your MTF data is consistent with my experience. Where did you get the info?

This lens should make its new owner very, very happy!
Credit where credit is due. Blue, another member here provided those numbers somewhere on this foprum... The f/1.4 data is likely from photozone.de. Blue dug up the MTF on the f/1.7 somewhere... I think it is somewhere in the threads that I referenced above, or in threads referenced in those threads... sorry, I forget, but generally I feel that they are consistent with my experience and the discussions held here generally on this lens.

I love the subject isolation that can be achieved with this lens...

11-09-2010, 07:43 AM   #12
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How is this not sold yet?
11-09-2010, 03:24 PM   #13
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Pm sent
11-09-2010, 08:10 PM   #14
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Lens sold pending payment...
 

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