Rich Hornberger

Home Notes NYIP Classes Unit One: Lesson 3 - The Lense
Unit One: Lesson 3 - The Lense PDF Print E-mail
Written by Rich Hornberger   
Tuesday, 14 December 2010 17:38

So this morning I officially wrapped up Lesson 3.  That one took me wayyyyy toooo looonnnnggggg!  I think the cruises killed progress on that one!  Well, lesson 3 was all about lenses, f/stops, aperture, etc.  It was interesting; I thought I understood the basics of how the f/stops worked but, this really put a whole new light on things about the halving of the light depending on the f/stop.  I'm not great with memorization so I still don't have the whole conversion chart memorized but, I'll get there.  It was interesting to learn about the correlation between the f/stop and the "lense speed" NOT TO BE CONFUSED with shutter speed as was mentioned so many times.

So beyond that I say so far so good, I've learned some details and on to lesson four...  On a side note, I'm not sure how many of the details are really sticking with me.  Unfortunately, I'm not sure I could tell you the technical names for all the lenses beside the fixed, telephoto, and prime lenses.  The rest is a bit of a blur considering I've never touched the other types.  I could tell you what they do if you mention the name but, don't expect me to blurt them out from the top of my head.  The other semi confusing thing here was the correlation between today's modern image sensors and the factor they play in focal-length.  I really need to look at my 50d and see what that factor is...


50d is a factor of 1.6x so my 28mm -> 130mm is really 44.8mm -> 208mm...  Cool stuff!  Not sure I entirely understand the logistics behind that other than the fact that the sensor is smaller than standard 35mm size and when an image is projected perpendicularly on the sensor chip, it lines up differently.  Feel free to drop me a line and explain it differently!

Regardless...  The long sharp S’s still bother's the daylights out of me but, I like the guy who just came onboard to the audio at the end of Lesson 3...  Let's hope he stay's with us into 4!


Last Updated on Thursday, 30 December 2010 16:00