A corner question
Aug 1, 2019 16:26:02 #
Chicflat
Loc: Tulsa, Ok,
Heather Iles wrote:
Quite right. Thank you Stephan G.
I have learned a lot from CHG_CANON on this thread.
Some members must realise that we are not all at the same level of photography and members, me included, look and learn instead of always asking questions and be told "why didn't you look that up" or "that question was asked before". If we knew we would not ask.
I have learned a lot from CHG_CANON on this thread.
Some members must realise that we are not all at the same level of photography and members, me included, look and learn instead of always asking questions and be told "why didn't you look that up" or "that question was asked before". If we knew we would not ask.
Ditto. His explanations always are to the point and instrin practical and useful ways beyond most others. CHG_CANON is among my favorites.
Aug 1, 2019 16:31:53 #
Heather Iles
Loc: UK, Somerset
Chicflat wrote:
Ditto. His explanations always are to the point and instrin practical and useful ways beyond most others. CHG_CANON is among my favorites.
Yes, we must appreciate those members who give up their time on UHH to help others and we must be grateful. Experience counts for a lot and cannot be bought.
Aug 1, 2019 17:18:46 #
Chicflat wrote:
I tried adjusting my settings to get a good exposure. The bright sun was giving me a lot of difficulty. At first I set the aperture at f8; the shot was totally underexposed. When I tried to change the time to cut the light it necessitated also changing the aperture, thus getting thee f4 setting. I tried adjusting the iso also, but I could not get a better exposure by any of those changes that I could see.
Thank you, that helps.
I think you had a good idea for this photo, possibly lightening the Center flower so much removed the visual interest (contrast) that would have held our attention on the center of the frame, thus making the cotners noticeable.
Aug 1, 2019 19:37:07 #
Chicflat wrote:
I was replying to a main forum topic about my departure from UHH, and then I saw this comment which compelled me to reply. Someone wisely pointed out that UHH is like the Hotel California:I tried adjusting my settings to get a good exposure. The bright sun was giving me a lot of difficulty. At first I set the aperture at f8; the shot was totally underexposed. When I tried to change the time to cut the light it necessitated also changing the aperture, thus getting thee f4 setting. I tried adjusting the iso also, but I could not get a better exposure by any of those changes that I could see.
"You can check out any time you like,
But you can never leave!"
Going from f/4 to f/8 reduces the amount of light the sensor receives. It sounds as though you might have tried to set the shutter speed faster rather than slower ("cut" the light?), in which case you end up with an image that is too dark.
- You used f/4, 1/400 sec, ISO 400
- An equivalent exposure is f/8, 1/100 sec, ISO 400
From f/4 to f/8 is two stops* towards a darker exposure, 1/400 sec to 1/100 sec is two stops lighter, so the result in terms of brightness will be the same with those changes.
If 1/100 sec is not fast enough (motion blur from wind or hand-holding etc) and you aren't using a tripod or other steadying device, then you must decide whether to choose a wider aperture (resulting in less depth of field) or go to a higher ISO. Or both. Another example that gives you the same exposure as your posted image - assuming I haven't made a math mistake
f/5.6, 1/400 sec, ISO 800
For anyone wanting to learn manual exposure, it's important to understand that there are many combinations of settings that will produce the same exposure. Your choices should be based on how much depth of field you want, whether motion is an issue (or desired), and how much noise your camera - and you - can accept in order to get the shot.
*There are online charts showing exposure stops. I'm using "full" stops in my examples; your camera will have more choices.
OK, I'm gone now!
Aug 2, 2019 02:36:48 #
Heather Iles
Loc: UK, Somerset
OK, I'm gone now! Oh no! I hope not.
Linda you said ""You can check out any time you like,
But you can never leave!"
I like that remark and look forward to your visits from time to time.
It is a shame that you have gone and I hope that someone will pick up from where you left off with regards to your maths calculation and explain it all. Is it a matter of working it out and if so, how is that done? I have seen charts, but hey, is it a case of learning and memorising them just like we were taught our tables at school?
Anyhow, I am pleased to see that you are are still around and is OK and that you will look in from time to time.
Linda you said ""You can check out any time you like,
But you can never leave!"
I like that remark and look forward to your visits from time to time.
It is a shame that you have gone and I hope that someone will pick up from where you left off with regards to your maths calculation and explain it all. Is it a matter of working it out and if so, how is that done? I have seen charts, but hey, is it a case of learning and memorising them just like we were taught our tables at school?
Anyhow, I am pleased to see that you are are still around and is OK and that you will look in from time to time.
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