Why Aperture matters

[powerlord]

I'm sure I'm not the only one who find's @vlaivs theoretical explanations of things difficult to really visualise and understand (no offence Vlaiv!) - And recently he was trying to explain aperture to me when I was talking about night vision - I tend to be a very visual guy - I have no problems rotating and working with 3d models in my head, etc - but if presently with equations, they don't naturally lend themselve to the same visualisation (even though 50% of my degree for maths).

So for folk like me, I find Huygens Optics channel very interesting, and it just so happens his latest video makes what Vlaiv was trying to tell me clear to me:

 

Again, thanks Vlaiv for making me think - it's just I need different medium sometimes to understand I think.

stu

[The60mmKid]

To understand why aperture matters, all I had to do was use a larger telescope once 😉

[niallk]

Great vid @powerlord & many thanks for posting!!

[LongJohn54]

Great video.  Using a microscope to demonstrate the effect that aperture has on the view was enlightening.  I've always had the simplistic thought that more aperture = more light = clearer/sharper view.  Having a technical explanation as to why this happens was worth watching.

See, I know now why I want an Askar 185 APO. 😁