1. CT

    CT TPer Emeritus

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    CT submitted a new resource:

    Photography - Lesson One - Photography - Lesson One

    Read more about this resource...
     
    Last edited by a moderator: Dec 7, 2014
    maarten.dhaese likes this.
  2. Cuddy

    Cuddy

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    Great intro CT, even i can grasp this, Dude question, Do you need to allow for crop factor? that being giving a long lens a bit of extra reach.
     
  3. jgs001

    jgs001 Brian Cox

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    Very well put and written CT (y) thanks
     
  4. rookie

    rookie

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    Excellent - can't wait for lesson 2.
     
  5. Steve Smith

    Steve Smith Joe

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    No. It has no effect on the relationship shutter speed and aperture have on exposure.


    Steve.
     
  6. CT

    CT TPer Emeritus

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    Not quite sure what you mean there Brian? I think you're asking should you include the crop factor in your shutter speed setting (1.6X in my case) to get a safe hand-holdable shutter speed?

    People argue this endlessly - but personally I don't - otherwise than noting that going faster than the lens reciprocal is always wiser if you want to be really safe. To be fair though, I'm amost always using a tripod for birds and always have IS engaged, so my biggest problem is usually subject movement rather than camera shake.

    I tend to use 500mm and 700mm focal lengths most of the time and even at 800 or 1600 ISO in our climate, I'm struggling set the shutter speed to the reciprocal of the lens, even with the lens wide open. Most days if I had to observe the shutter speed = lens reciprocal rule, I'd never take a shot, but the rule really applies to just hand holding.

    I struggle to hand hold the 500mm anyway - it isn't so much the weight (although it is heavy) it's trying to keep that single AF point on the head of a small bird - you've really got no chance at all - with a bigger target it wouid obviously be easier, but you'd be well advised to go for the fastest shutter speed anyway, quite apart from crop factor considerations.

    Hope that's not too confusing?
     
    Last edited: Dec 18, 2009
  7. AlexW

    AlexW

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  8. EdinburghGary

    EdinburghGary Reply not Report

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    How do I shoot a wedding?




    :coat:

    :D
     
  9. CT

    CT TPer Emeritus

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    From the bar works for me. :D
     
  10. Cuddy

    Cuddy

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    DOH!
     
    Last edited: Dec 20, 2009
  11. Cuddy

    Cuddy

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    No thats not confusing at all, looking forward to part2. Thanks CT
     
  12. Billy

    Billy

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    Thanks for this, good Sunday morning reading.
     
  13. Lord Carson

    Lord Carson

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    Great thread, well done to CT. Looking forward to Lesson 2 :)
     
  14. CT

    CT TPer Emeritus

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    LOL. I'm glad some of you are finding it helpful, but I wasn't really planning a Lesson 2, I just wanted to do a very basic explanation of shutter speeds and apertures. I called it Lesson 1 because those are the basic building blocks you have to start out with. I thought long and hard about including ISO in this intro, but in the end decided to keep it to the basics.

    I might just do a further one on ISO as it's so tied in with shutter speeds and apertures with the same halving and doubling relationship.

    Once you get on to exposure basics there are already some good explanations on the board including a very good one by Ed Bray.
     
  15. EdinburghGary

    EdinburghGary Reply not Report

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    Slacker :D
     
  16. hashcake

    hashcake

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    Great stuff CT (y)
    Are you going to do a follow up on ISO, white balance and exposure?
    This thread should me made a sticky.
    Oh, and can I be your wildife photography apprentice? :)
     
  17. CT

    CT TPer Emeritus

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    :LOL: Hard task masters you lot are!
     
  18. hashcake

    hashcake

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    You started it :D
     
  19. CT

    CT TPer Emeritus

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    No probs - but apprentices carry ALL the gear. :D
     
  20. Lord Carson

    Lord Carson

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    Too late to back out now. You are now the official teacher of Talk Photography :rules:


    :notworthy::notworthy::notworthy::notworthy:
     
  21. Cobra

    Cobra W Staff Member

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    I'm not quite sure whether its you or me that's been at the malt a little
    early this morning CT :D
    but if you do as you suggest you fall off the page ;)

    Great guide by the way (y)
     
  22. CGeezer

    CGeezer

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    Excellent work CT, even I can understand some of this. :LOL:

    Can I ask, is an exposure meter a good thing to get and use in these days of computerised DSLR's? Does anyone still use them? Are they essential to good exposures?
     
    Last edited: Dec 20, 2009
  23. cowasaki

    cowasaki TPer Emeritus

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    Having spent a year doing one lesson after another I for one can appreciate the amount of time this takes. It is much appreciated and I think a certain person will find this quite educational in a few days :schtum:
     
  24. CT

    CT TPer Emeritus

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    LOl. Good cop -edited.
     
  25. CT

    CT TPer Emeritus

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    A meter isn't really at all essential these days, when you have the preview screen and the histogram on your DSLR.

    I do use one, but it's mainly when I'm using a medium format camera with no metering. Most medium format users will use one for the same reason. Studio photographers tend to go for a meter which does flash exposures as well to make life a bit easier in setting up flash exposures.

    So - not essential for most users these days, but I'd say if you fancy one then get one, you can learn a lot about exposure just by playing about and experimenting with it, but make sure you get one that does incident and reflected readings. If it does flash as well - all the better.
     
  26. CGeezer

    CGeezer

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    Thanks for the tips CT I will definitely think about a light meter as I need all the help I can get bringing all the different elements together. As said this lesson has helped me out no end though (y)
     
  27. Ben Hur

    Ben Hur

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    Nice one CT, thanks for taking the time to post.
     
  28. getnoticed

    getnoticed

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  29. dizidav

    dizidav

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    Great guide, nice idea to choose that type of lens, gives easy relationship between the dials.


    Dave.
     
  30. ph166

    ph166

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    very helpful, a lot easier to under stand than some articles i have read recently.

    thanks
     
  31. mtracerz

    mtracerz

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    Great read this was.Given me a bit of confidence to head outside now :)
     
  32. rambits

    rambits

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    thanks for sharing, very useful
     
  33. Englishman

    Englishman

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    A really good document, very clear and helpful.
    A follow up on how ISO affects light and potential shutter speed would be a great next step.
     
  34. CT

    CT TPer Emeritus

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    I'm glad you found it useful. I will be doing a follow-up to include ISO, either as a separate post or incorporated into this one. (y)
     
  35. SIRUSKEY

    SIRUSKEY

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    That was very informative and exactly what i needed.

    Thanks
    Craig
     
  36. stevewestern

    stevewestern

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    Another BIG Thanks to Cedric for this.
    It will help me explain so much better than if I tried to put it into words when I start my photography course - got eight 9 year old's coming plus a couple of teachers so I need all the help I can get !
     
  37. Original Poster

    Original Poster

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    Many thanks for this, very helpful!
     
  38. CT

    CT TPer Emeritus

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    Good luck with the course - teaching kids is great - they soak it all up like blotting paper.
     
  39. softrice

    softrice

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    Thanks CT simple to read and understand
     
  40. lizzy23

    lizzy23

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    I really enjoyed this and have book marked for future reference, its nice to have these things explained in simple terms
     

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