I have a camera which has the Sony IMX267LQR sensor. From the sensor documentation, its diagonal is 16.1 mm and pixel dimensions are 4096 (H) × 2160 (V). The camera manufacturer listed it as 1 inch sensor format. I therefore got a 1 inch compatible lens (model: Navitar NMV-8M1).
I couldn't find the horizontal and vertical dimensions of the sensor so I made the assumption that I can treat the image pixel dimensions and sensor size dimensions as similar triangles. Therefore I have one triangle with pixel dimensions 4096 (H) x 2160 (V) x 4630.63 (D) and the sensor with millimeter dimensions 14.25 (H) x 7.5 (V) x 16.1 (D). My Navitar's lens specification states the picture size as 12.8 x 9.6 mm. My questions are:
Did I make a correct assumption regarding finding the sensor dimensions using similar triangles? I think I did because I tried the same method on the Sony IMX253 with known dimensions from Wikipedia and my numbers came very close.
Did I buy the wrong lens then for my IMX267LQR sensor? My lens's picture size is listed as 12.8 mm but I'm getting the sensor size dimension as 14.25. Should I get a lens for 1.1" sensors then? For Navitar, their 1.1" lens lists picture size as 14.1 x 10.6 mm, which seems closer to 14.25.
If I do get a larger lens, would it have any negative impact on my image quality? I know that the improper mating of a smaller lens format for a larger sensor will result in optical vignetting, but I don't know if there are any negative consequences of a larger lens format on a smaller sensor (other than price).