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- iPhone 11 Pro
- My 365
- My MobiTog 365
Stunning.Just after sunrise at the Bon Ami Rocks.
View attachment 148294
Just before leaving for Dalhousie I received my new Gobe variable ND filter for my iPhone so I was keen to do more long exposure photography.
The main reason I bought it was for video. You get a more natural looking motion in video when your shutter speed is 1/60 sec, assuming you are using the standard 30 frames/sec. Or 1/48 if you use 24 FPS. In regular daylight they typical shutter speed on a mobile phone would be well over 1/1000 sec., which tends to make motion look harsh or fragmented. The neutral density filter cuts down the light at the lens allowing you to adjust your shutter speed down to the desired level. This, of course, assumes you are using a video app with controls such as FiLMiC Pro.
In this case I was using slow shutter apps like NightCap Pro and Slow Shutter Cam.
According to the metadata for this picture in NightCap Pro, my ISO was set at 22, the aperture was ƒ1.8, with the wide 1x lens, the exposure time was 15.1036 seconds, and the actual shutter speed for each individual image making up the long exposure was 1/16,129 sec. That’s a speed completely out of sight for DSLR users.
I cannot detect any difference in quality between NightCap Pro and SlowShutter Cam. Both save as tiff files. However, NightCap Pro has much better controls. Slow Shutter Cam does not give me any way to adjust the exposure level except by placing the exposure reticle on the brightest area, but even so it is too bright. My preferred way of exposing is to trip the shutter and observe the screen to see when I’m getting the desired effect and then end the exposure before it goes too far.