Approve the Cookies
This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies. Read More.
OK
Index  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Register to forums    Log in

 
FORUMS General Gear Talk Flash and Studio Lighting
Thread started 12 Jan 2018 (Friday) 11:47
Prev/next
sponsored links
(this ad will go away when you log in as registered member)

Basic lightmeter questions

 
Wilt
Reader's Digest Condensed version of War and Peace [POTN Vol 1]
Wilt's Avatar
39,769 posts
Gallery: 1 photo
Joined Aug 2005
Belmont, CA
Post has been last edited 29 days ago by Wilt. 2 edits done in total.
Jan 24, 2018 16:36 |  #31

kat.hayes wrote in post #18548208 (external link)
1. While using the light meter it suggested an ISO 50 and 16, though the 5DM3 only goes down to 100. What is the best way to handle this? Speed up my shutter?

Thanks.

If you want ISO 50, simply set ISO 100 and then (if using Tv or Av) also set EC = +1
ISO 25 would be to set 100 and then (if using Tv or Av) also set EC = +2
ISO 16 would be to set ISO 125 then (if using Tv or Av) also set EC = +3


You need to give me OK to edit your image and repost! Keep POTN alive and well with member support http://photography-on-the.net/forum/donate.p​hp
Canon dSLR system, Olympus OM 35mm system, Bronica ETRSi 645 system, Horseman LS 4x5 system, Metz flashes, Dynalite studio lighting, and too many accessories to mention

LOG IN TO REPLY
DaviSto
... sorry. I got carried away!
DaviSto's Avatar
Joined Nov 2016
Abuja Nigeria
Jan 24, 2018 16:44 |  #32

kat.hayes wrote in post #18548208 (external link)
1. While using the light meter it suggested an ISO 50 and 16, though the 5DM3 only goes down to 100. What is the best way to handle this? Speed up my shutter?

2. For different readings, the meter suggested f3.6 though my lens only has has a 3.5. Same thing with my lens having a f7.1 while the meter suggested f7.0. Is this insignificant?

Thanks.

The light meter is giving you one combination of settings that will result in the 'right' exposure. There is a huge range of alternative aperture, shutter speed and Iso combinations that will give the same overall exposure value. Within that envelope, your challenge as the photographer is to find the combination that best suits your subject and your vision for the shot. You can find the full range of possible combinations of settings that are consistent with the meter reading by playing around with the different 'dials' on the meter.


David.
Comment and (constructive) criticism always welcome.

LOG IN TO REPLY
Alveric
Goldmember
Alveric's Avatar
Joined Jan 2011
Canada
Jan 24, 2018 18:19 |  #33

I'd consult the manual to see how the meter can be set to match your camera's values (e.g. thirds of a stop). My meter never reports anything but settings that I can plug in (although it does put out 'decimals').


'The success of the second-rate is deplorable in itself; but it is more deplorable in that it very often obscures the genuine masterpiece. If the crowd runs after the false, it must neglect the true.' —Arthur Machen
Why 'The Histogram' Sux (external link)

LOG IN TO REPLY
Wilt
Reader's Digest Condensed version of War and Peace [POTN Vol 1]
Wilt's Avatar
39,769 posts
Gallery: 1 photo
Joined Aug 2005
Belmont, CA
Post has been last edited 28 days ago by Wilt. 2 edits done in total.
Jan 25, 2018 19:03 |  #34

kat.hayes wrote in post #18548208 (external link)
2. For different readings, the meter suggested f3.6 though my lens only has has a 3.5. Same thing with my lens having a f7.1 while the meter suggested f7.0. Is this insignificant?

Thanks.

f/no. +1/4 +1/3 +1/2 +​2/3 +3/4
- ---------------

f/2 2.2 2.24 2.3 2.5 2.6

f/2.8 3.1 3.2 3.4 3.5 3.7

The difference between 2/3EV and 3/4EV: 0.75 - 0.67 = 0.08EV, or less than 1/10th of an f/stop...so the difference between f/3.5 vs. f/3.6 is 0.04EV...not detectable by eye.


You need to give me OK to edit your image and repost! Keep POTN alive and well with member support http://photography-on-the.net/forum/donate.p​hp
Canon dSLR system, Olympus OM 35mm system, Bronica ETRSi 645 system, Horseman LS 4x5 system, Metz flashes, Dynalite studio lighting, and too many accessories to mention

LOG IN TO REPLY

2,565 views & 27 likes for this thread
Basic lightmeter questions
FORUMS General Gear Talk Flash and Studio Lighting


Not a member yet? Click here to register to the forums.
Registered members get all the features: search, following threads, own gear list and ratings, likes, more forums, private messaging, thread follow, notifications, own gallery, settings, view hosted photos, own reviews and more...


AAA

Send feedback to staff    •   Jump to forum...    •   Rules    •   Index    •   New posts    •   RTAT    •   'Best of'    •   Gallery    •   Gear    •   Reviews    •   Polls

COOKIES DISCLAIMER: This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies. Privacy policy and cookie usage info.

POWERED BY AMASS 1.4version 1.4
made in Finland
by Pekka Saarinen
for photography-on-the.net
Spent 0.00089 for 4 database queries.
PAGE COMPLETED IN 0.01s
Latest registered member is Balco
963 guests, 477 members online
Simultaneous users record so far is 6430, that happened on Dec 03, 2017