Petzval Broken focusing knob

**mylek** · 12-Jul-2015, 10:21

Hello,

i just bought a petzval lens and when i unpacked it, i found out that the focusing knob broke during shipping. I've talked with the seller and he agree to refund me but i'll like to keep this lens. So, what is the difference in value of a lens with and with out this knob?
I will rather liked to make an agreement over a lower value for this lens tun sending it back.

Is it easy to replaced the broken shaft from the gear side. I'm not able to removed it from the lens itself.

Regards!

**Mark Sawyer** · 12-Jul-2015, 14:42

Those a usually soldered together. A good place to ask about repairs is a local musical instrument shop that repairs brass instruments for high schools. As most schools are out-of-session over the summer, you could get a quick turn around now, and an on-the-spopt estimate of the repair price so you can negotiate with the seller.

Broken/missing knobs definitely devalue the lens, but by how much depends on the buyer's opinion. As we focus with the bellows, it's not a practical problem in using the lens.

**Lachlan 717** · 12-Jul-2015, 16:32

Unless it's a "collectable" lens (i.e. a coveted brand and a possibly rare FL), the focus knob will not effect pricing much, if at all.

Providing us with a brand and type, and/or photos would help with determining this.

**mylek** · 12-Jul-2015, 16:41

Thanks for the answer!
The lens is a Voigtlander Portrait Euryscop series II.

**Mark Sawyer** · 12-Jul-2015, 17:42

Nifty lens, but it's an Aplanat (aka Rapid Rectilinear), not a Petzval.

**Two23** · 12-Jul-2015, 18:44

I wonder that with the new computerized metal scanning/cutting machinery if a new one could just be "printed" on one of those machines?

Kent in SD

**Steven Tribe** · 13-Jul-2015, 00:55

I really don't understand the damage description - you must post a photo!

**Lachlan 717** · 13-Jul-2015, 01:40

Steve,

I think that s/he's referring to the knob on the radial drive shaft.

**Steven Tribe** · 13-Jul-2015, 02:55

Yep, I guessed it was the brass knob on the steel drive. Radial, of course, on a Euryskop II.

What I don't understand is the problem of removing in from the lens as there are 4 screws waiting to loosened!

This is obviously a lens you don't return for a superficial problem if the price was right (for you)!

**mylek** · 13-Jul-2015, 04:39

I was aware that this is an Aplanat lens but it was easier to describe the problem.
It seems that somebody at some time welded the cover of the gear on the lens so i'm less tempted to removed it.
Here is a picture.