Reconciling the Thick Lens Model with P2P Optical Bench

Started 4 months ago | Discussions thread
bclaff Forum Pro • Posts: 12,454
Math and Measurements of Focal Length etc.

Math of measuring focal length with extension.

Measuring Focal Length
An example with a simple lens

Measuring Focal Length - 50mm f1.8D AF Nikkor

A more sophisticated example including subject distance.

Focal Length at Closest Focus - 105mm f2.8G IF-ED AF-S VR Micro-Nikkor
How to get hyper-accurate magnifications for close-up calculations.

Measuring Magnification

Regards

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Bill ( Your trusted source for independent sensor data at PhotonsToPhotos )

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