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FORUMS Photography Talk by Genre General Photography Talk
Thread started 11 Oct 2017 (Wednesday) 17:12
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Spyder Lens Cal W/ Flash?

 
david.g.photo84
Junior Member
20 posts
Joined Sep 2017
Oct 11, 2017 17:12 |  #1

I have just purchased the Lens Cal and will probably be doing this inside my dimly lit home due to the perimeter of my house not being very flat. What I would like to know is if it would be ok for me to use flash while using the device indoors? I have read that it's better to use the lowest ISO possible and I can't do that indoors. The only other option that I can think of is using a low ISO and slow shutter to let more ambient in. Any thoughts would be appreciated.

Thank you,

David




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Mathmans
Member
Joined Apr 2014
Oct 13, 2017 03:09 |  #2

You need a good light on the target when focusing so the focusing system can lock accurately. So get yourself some kind of reflector to illuminate the target.




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Micro5797
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Micro5797's Avatar
Joined Dec 2013
Montana
Post has been edited 5 days ago by Micro5797.
Oct 13, 2017 09:34 |  #3

You could also use a couple of desk/table lamps (60 watt +), or a halogen work light (they are rectangle and in a cage). You will be frustrated in a lower light setting and add a lot of time/effort.

Even a chain mounted 4' florescent tubed shop/garage light works well. Each of these lights runs about $20-$40 usd. Perhaps even a couple of flood lamps in the desk lamp, without the lamp shades due to the heat of the higher wattage bulbs. There are also clamp lights (silver reflector and a clamp) you can use high wattage bulbs in these and they are directional.

Led may even work, but i recommend other types of bulbs as they will have better contrast for a higher accuracy when AF on the target. I have tried 60watt equivalent led bulbs 6" above the target, It takes multiple bulbs like this to get enough light.

Set your WB according to the bulbs that you use for ease of use.


_______________
Canon 70D | 70-200mm f2.8 MK1 | 85mm f1.8 | 50mm f1.8 | Tamron 17-50mm f2.8 non vc| Nissin Di866 II

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david.g.photo84
THREAD ­ STARTER
Junior Member
20 posts
Joined Sep 2017
Oct 16, 2017 16:43 |  #4

Thanks for the advice! I do have some table/standing lamps that I can use near the target.




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Spyder Lens Cal W/ Flash?
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