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Review: OEM IPC-B5442T-ASE-NI 4MP Pro AI Starlight Full-color Fixed Bullet

bigredfish

bigredfish

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One reason I urge caution on these type of tests is lack of motion. This does clearly show the NI to be brighter but the real test is with motion. At 1/120 where I run the NI, I get next to zero motion blur (in color). I cant really run the ASE at that speed and still get good details so I have to run them at 1/60 and live with some blur.

Also I'm not a photography expert, but I perceive a bit better depth with the ASE vs the NI. Dont know why, and that may contribute to the observation of the B&W images. Note that the NI FOV is slightly wider than the ASE also. Again I don't know why that is as I think they use the same sensor...
 
samplenhold

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bigredfish said:
but I perceive a bit better depth with the ASE vs the N
Click to expand...
The NI has an aperture of F1.0 and the ASE is F1.6, so the NI would have a shallower depth of field. The focal length and aperture of a lens is what sets the depth of field. A smaller aperture (larger F-stop number) gives a large depth of field.
 
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Dave Lonsdale

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Thanks for that clarification samplenhold. However, if this were the reason for some ASE background objects to appear brighter, surely it would apply to the entire backdrop and also apply to the images in colour? I now have a different reason to offer. Is it perhaps that some objects either radiate or reflect the IR that is “naturally” present? - I discovered from bigredfish earlier in this post that the ASE-NI blocks this part of the spectrum.
 
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I cant understand what it meens by b&w but not ir? Why choosing b&w then?
 
bigredfish

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The NI Full Color model does not have IR and can’t see IR. It can be run in normal black and white mode however if you have external light but not enough for a good color image.
 
Arjun

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dabflyboy said:
Yeah, I saw that. It still has the CMOS 1/1.8, but an aperture of F1.6. I'm still holding out for a turret version of the ASE-NI with F1.0
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I thought there was a turret with aperture of F1.0 that @bigredfish was going to review
 
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