Author Topic: Photography technical advice, questions, tips and techniques.  (Read 5704 times)

hermes2015

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Re: Photography technical advice, questions, tips and techniques.
« Reply #270 on: December 31, 2018, 03:17:26 AM »
I don't really know why it wasn't successful. I probably would have used the largest f-stop on the lens, because at that distance the depth of field would not have been a big issue. Did you use the Auto ISO setting? Did you disable the flash? In this situation you should not use flash.

jumbojak

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Re: Photography technical advice, questions, tips and techniques.
« Reply #271 on: December 31, 2018, 04:30:54 AM »
Those were shot at f/5.6, the largest aperture the kit lens has available, with the ISO manually set to 3200 and 1600, respectively. The flash was not used. In fact, I have yet to find a situation where the onboard flash is preferable to other adjustments to give a proper exposure. I never use it.

I wanted a higher f-stop to help the auto focus a bit. The AF-S lenses are a bit... slow, and it spent a fair amount of time hunting for clarity. It seems that a higher f-stop, and the increased depth of field leads to quicker shots. In the end I had to focus, switch the lens to manual focus to lock the focus ring, and remember to readjust when I moved.

Quick question about your D750; how do you turn off the auto focus? Is it a menu you have to page through on the LCD, or is there a switch somewhere on the camera body? Asking for a friend...
 

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hermes2015

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Re: Photography technical advice, questions, tips and techniques.
« Reply #272 on: December 31, 2018, 05:02:26 AM »
Those were shot at f/5.6, the largest aperture the kit lens has available, with the ISO manually set to 3200 and 1600, respectively. The flash was not used. In fact, I have yet to find a situation where the onboard flash is preferable to other adjustments to give a proper exposure. I never use it.

I wanted a higher f-stop to help the auto focus a bit. The AF-S lenses are a bit... slow, and it spent a fair amount of time hunting for clarity. It seems that a higher f-stop, and the increased depth of field leads to quicker shots. In the end I had to focus, switch the lens to manual focus to lock the focus ring, and remember to readjust when I moved.

Quick question about your D750; how do you turn off the auto focus? Is it a menu you have to page through on the LCD, or is there a switch somewhere on the camera body? Asking for a friend...

I have the older D600. There is a lever on the camera body that switches between manual and auto focus (marked AF/M). On the lens itself there is also a switch to select between the two modes. On top of this, one can also choose AF-A, AF-S, or AF-C on the camera body or the onscreen menu. I prefer AF-C. I guess the D750 behaves the same.

I haven't noticed any effect on focusing speed when I use different apertures on the D600.

jumbojak

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Re: Photography technical advice, questions, tips and techniques.
« Reply #273 on: December 31, 2018, 03:32:38 PM »
I could be imagining things. Wouldn't be the first time.
 

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Re: Photography technical advice, questions, tips and techniques.
« Reply #274 on: December 31, 2018, 08:34:53 PM »
Damnit, now I'm going to have to go out at night with a stopwatch to test this. Or maybe I should setup in the kitchen. Going out at night would be more interesting but might confound my results.
 

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Re: Photography technical advice, questions, tips and techniques.
« Reply #275 on: January 09, 2019, 09:23:46 PM »


Is the weird orange glow running on the power lines chromatic aberration or is something else going on? It's a high voltage transmission line. You can see the tower on the right of the photo.
 

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hermes2015

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Re: Photography technical advice, questions, tips and techniques.
« Reply #276 on: January 10, 2019, 03:07:47 AM »


Is the weird orange glow running on the power lines chromatic aberration or is something else going on? It's a high voltage transmission line. You can see the tower on the right of the photo.

I don't think it is chromatic aberration. It could be corona discharge.

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Re: Photography technical advice, questions, tips and techniques.
« Reply #277 on: January 10, 2019, 01:08:23 PM »
I can't make out the power lines at all.
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Re: Photography technical advice, questions, tips and techniques.
« Reply #278 on: January 14, 2019, 03:20:19 PM »


Is the weird orange glow running on the power lines chromatic aberration or is something else going on? It's a high voltage transmission line. You can see the tower on the right of the photo.

I don't think it is chromatic aberration. It could be corona discharge.

Could you point me to some information regarding corona discharge's relationship to photography? I Google until my thumbs were sore but only found general explanations of the phenomenon.
 

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jumbojak

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Re: Photography technical advice, questions, tips and techniques.
« Reply #279 on: January 14, 2019, 03:22:19 PM »
I can't make out the power lines at all.

If you follow the tower on the right towards the left of the phot you'll see something "hanging" just below the tree canopy. I don't know, it might be the cloud color bleeding through.
 

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Re: Photography technical advice, questions, tips and techniques.
« Reply #280 on: January 14, 2019, 03:38:11 PM »
I can't make out the power lines at all.

If you follow the tower on the right towards the left of the phot you'll see something "hanging" just below the tree canopy. I don't know, it might be the cloud color bleeding through.

I think it's the cloud colour myself.
If religions were TV channels atheism is turning the TV off.
“Religion is a culture of faith; science is a culture of doubt.” ― Richard P. Feynman
'It is said that your life flashes before your eyes just before you die. That is true, it's called Life.' - Terry Pratchett
Remember, your inability to grasp science is not a valid argument against it.