150mm lens for 4x5 inch camera

BBonte

Member

Joined

Mar 8, 2005

Messages

76

Location

Belgium near

Format

Med. Format RF

• Jan 31, 2009

• #1

Is that like a 50mm standard lens in 35mm photography ?


Bernard

 

Jerevan

Member

Joined

Nov 19, 2004

Messages

2,258

Location

Germany/Sweden

Format

Large Format

• Jan 31, 2009

• #2

Yes, but anything between 135 and 180 would be considered "normal", in the same way a 35 mm lens could be a wide normal and say, a 60 mm lens would be considered a long normal in 35mm photography.

 

archphoto

Member

Joined

Dec 14, 2008

Messages

960

Location

Holland and

Format

4x5 Format

• Jan 31, 2009

• #3

Some addition to Jerevan's answer:
A Tessar will give you a smaller image-circle than the more expensive lenses like the Sironar, important to know if you want to use shifts with the TC.

Peter

 

Pinholemaster

Member

Joined

Oct 17, 2005

Messages

1,566

Location

Westminster,

Format

8x10 Format

• Jan 31, 2009

• #4

The best way to calculate a 'normal' focal length for any film format is to measure the diagonal of the film plane. The diagonal divides the film into two equal triangles.