Reciprocity Made Simple

A clear explanation of this important SLR photography principle by Rob Barron

Category:

Science & Technology

Tags:

• photography
• reciprocity
• camera

[surajmehare]

Thank you sir, Excellent trick - using a torch to get the focus :-).

Posting one more question regarding focus but you can answer it at your convenient time. When I set my camera (Nikon D5000) to Auto-Focus it focuses on multiple points (...well understood), now how can I understand the Depth-Of-Field with respect to multiple points? usually in case of single focus point I can easily imagine how Depth-Of-Field can be.

[MPTutor]

@surajmehare Depth of Field is not affected by using multi-points or single point AF. Depth of Field refers to what is in focus forward and behind the subject so it really doesn't matter at all :o)

[niekam666]

Yes I have seen all videos, they were great and although helped me understand, I still need to know if the auto settings on a camera is there to make best settings for you, what do the manual settings offer that is different ? So under what circumstance would you manually adjust settings as opposed to letting the camera do it all for you.

Thanks again

[MPTutor]

@niekam666 The camera in auto will give you a decent exposure for 'average' lighting but to give you full control, the other modes are better. For example, the camera can see how much light is being reflected from a car and set a suitable exposure but it can't see that this car is travelling at 150km/h and that you want to freeze it, so you would use Tv Mode and select a faster shutter speed. Likewise, if you want a shallow DoF you'll select a wide aperture, etc. Having more control is good :)

[Gator8881369]

Rob,

I am new to all of this and I can't tell you how much your teaching style has helped me get some of this new world into my thick scull.

Thank you very much for what you do.

[rohitdewani]

4 : 02 i ll eat u later....sweet...u r a great teacher

[MotivatedFx]

The one dislike is a guy who ran away when he said 'Reciprocity'

[beytoya]

I love your videos I was completely clueless to finding out what combos to put my film camera in. I'm deathly afraid of EV calculations. Very confusing but your video has really put me into perspective. Have a wonderful day and keep those lessons coming. You have a teachers touch.

[niekam666]

Thanks, I get it. Please more tutorials Rob!

[surajmehare]

Thank you