Sunday, September 09, 2007

Lens arbitrage

Click here for large size image

Yesterday, I acquired a new lens (yes I know, again). A Tamron 28mm f/2.8 on Pentax screw mount, which is very close to my Meyer-Optik Görlitz Lydith 30mm f/3.5 (2 mm wider, half a stop faster). Finished in brushed aluminium, the lens is quite a striking difference to all those black rubber-clad tubes out there.


Click here for large size image
Click here for Deviant Art entry

The shop did not know the mount for the lens, and it was generically labelled as “fits most SLR cameras”. It’s actually a Tamron Adaptall 2 system which can be adapted to fit Canon, Nikon, Pentax K, Minolta, Konica and M42 mounts. This particular specimen came with the M42 screw mount, but someone made a mess and thought it was a T-mount (like the M42, the T-mount has 42 mm screw threads but with different thread widths). And the secondary market for T-mount lenses is very small.

Hence, it was cheap.

Click here for large size image

So, I now have an arbitrage opportunity. Essentially, buy low sell high with no value adding.

Also, my position appears to be hedged by means of a put option (because I managed to get the salesperson to wrongly ‘confirm’ that the lens is a T-mount, I have a leeway in returning the thing if the need arises).

I didn’t know specialist knowledge can be so useful...

Click here for large size image
The rear of the lens showing the M42 mount

Click here for large size image
The workings of the Adaptall 2 mechanism with the Adaptall - M42 adapter removed

See my newly expanded vocabulary? I’ve been levelling up.

Labels: , ,


Anonymous check cashing san-diego said...

While enormous changes and difficulties are currently confronting the web based loaning industry in the UK, it truly pays to have a prepared installments supplier that can direct you through the procedure and exhort the prescribed procedures with the goal that you are not running astray of the administrative structure.

12:13 pm, July 30, 2017  
Anonymous Cash Advance Chicago said...

It took a while yet I figured out how to do it. The primary spot I had went however, continued running the check through the credit union I was an individual from.

11:43 pm, July 30, 2017  
Anonymous Auto Title Loans Chicago said...

A few understandings will take into account intrigue just regularly scheduled installments, yet it is insightful to make installments towards the important consistently to stay away from a huge inflatable installment toward the finish of the term or face the likelihood of losing your auto title. Credits like this can maneuver you into an obligation trap.

1:47 pm, August 01, 2017  
Anonymous payday loans chula-vista said...

In any case, the vast majority don't comprehend what payday advances are or in the event that they're the privilege budgetary choice for their requirements. Read on to find out about online payday credits and how to decide whether they're appropriate for you.

12:55 pm, August 02, 2017  
Anonymous cash advance corona said...

Since they work with such a large number of various banks with a wide range of various terms and choices, they can locate the best match for your prerequisites in a great deal shorter time than it would take you to apply to a pack of various sites.

12:44 am, August 03, 2017  

Post a Comment

<< Home