M mick m Messages 232 Edit My Images Yes 7 May 2011 #1 How do I work out the mag ratio of a 60mm lens with 68mm of extension tubes. The lens is a Nikon AF 60mm macro lens so its already 1 to 1. Mick.
How do I work out the mag ratio of a 60mm lens with 68mm of extension tubes. The lens is a Nikon AF 60mm macro lens so its already 1 to 1. Mick.
HoppyUK Messages 23,200 Name Richard Edit My Images No 7 May 2011 #2 Take a picture of a ruler and work it back from the size of the sensor.
OP M mick m Messages 232 Edit My Images Yes 8 May 2011 #3 Good idea Hoppy. So with a D300 and sensor width of 23.7mm I can get 10mm of ruler in the frame. Am I right in thinking that is a 2.3 to 1 ratio. Mick.
Good idea Hoppy. So with a D300 and sensor width of 23.7mm I can get 10mm of ruler in the frame. Am I right in thinking that is a 2.3 to 1 ratio. Mick.
