Flektogon with Nikon SLR

[fisheye]

Does anyone has experience with Flektogon lens?<br>

<br>

A few days ago, I bought a M42 mount Flektogon 35mm f/2.4 from

ebay.<br> But I'm not sure about the optical quality of lens.<br>

<br>

I have a M42 adapter for Nikon F mount (with built-in lens which will

allow lenses to focus normally to infinity)<br>

 

And I heard that the built-in lens will decrease Flektogon's lens

quality. Is it true?<br>

<br>

I need guru's opinion. Thank you. =)<br>

<br>

Best regards<br>

Sang Kyu, Han<br>

[vivek iyer]

The converter/adaptor will decrease the quality. Since you have bought the lens, you are the best person to decide if this lens will suit your needs.

 

Vivek.

[fisheye]

Vivek. Thank you for reply.<br>

<br>

Yes. I knew Flektogon(Carl zeiss) lens is great lens.<br>

But with Nikon SLR, it has one specific problem.<br>

<br>

In Nikon SLR adapter, we have two choice.<br>

With built-in lens adapter and without it. Without built-in lens it doesn't support infinity focusing but it'll not affect any optical quality.<br> But built-in lens adapter will support infinity focusing and decrease Flektogon's lens quality.<br>

<br>

My question is.<br>

<br>

1. If built-in lens would affect Flektogon's lens quality,

how does it affect picture quality?<br> (It will affect color?

contrast or sharpness? I need a small advice.)<br>

<br>

2. And which adapter is would be good choice?<br>

(If you had a choice, which adapter would be your choice?)

[aardvarko]

it will affect sharpness primarily, possibly decreasing contrast and introducing chromatic aberration

[fisheye]

Chromatic aberration? Oh I see.<br>

It sound likes a big problem to me.<br>

<br>

I think I have to choose non lens built-in adapter for image quality.<br>

<br>

Thank you Chris. =)