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Nissin i40 flash review

Started Jun 23, 2015 | User reviews thread
tnphoto
OP tnphoto Regular Member • Posts: 283
Re: Just found this very interesting Nice review of a nice flash - thanks for posting

karlreed wrote:

Jim Vincent wrote:

I have an i40 and feel it serves my needs well.

For the OP, how do you judge the guide number exactly?

I'm the OP of the original review. I shot a JPG bracket of a Macbeth color chart, then read the high values in Photoshop. The "correct" exposure had the white patch at around 240. The guide number is distance x f/stop at that exposure.

 tnphoto's gear list:tnphoto's gear list
Fujifilm X-T4 Fujifilm X-E4 Fujifilm XF 18-55mm F2.8-4 R LM OIS Fujifilm XF 55-200mm F3.5-4.8 R LM OIS Samyang 12mm F2.0 NCS CS
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