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bobn2

bobn2

Lives in United Kingdom Worcestershire, United Kingdom
Joined on Aug 28, 2007

bobn2's recent activity

  • You're still carrying your 'belief' that this camera has a Sony sensor. It's pretty clear now that it's a Toshiba, like the D7100. Time to update, I think...

  • See my response above. From the product shot with the lens off, I'd say this is the Toshiba sensor, not the Sony.

  • From the product shot with the lens off, the sensor looks like the Toshiba again, not the Sony. The Sony has a very distinctive pattern of lands top and bottom and has a blue optical mask frame,...

  • 'EI is essentially the same as ISO.'
    Rather, EI is the right term and 'ISO' is the wrong one. 'ISO' is an organisation with lots of standards, not all about photography. The Exposure Index (As...

  • Commented on Hands-on with Nikon's new D5500 article

    I think the interesting thing is that although the pixel count is the same, Nikon haven't carried on using the same sensor. The latest Sony unit is overall a better performer than any of the...

  • Commented on Hands-on with Nikon's new D5500 article

    Slightly wrong. D3200 sensor was Nikon. D3300 Sony. D5200 and D7100 Toshiba, D5300 Sony. I don't know what is the D5500 yet, but most likely Sony. The Sony, Nikon and Toshiba sensors all look quite...

  • Commented on Hands-on with Nikon's new D5500 article

    Slightly wrong. D3200 sensor was Nikon. D3300 Sony. D5200 and D7100 Toshiba, D5300 Sony. I don't know what is the D5500 yet, but most likely Sony. The Sony, Nikon and Toshiba sensors all look quite...

  • Slow news day?

  • Re: For example, if an mFT photographer shot a scene at 50mm f/2 1/200, there is no reason the FF photographer could not shoot the scene at 100mm f/4 1/100.

    I assume you meant

    if an mFT...

  • 'But, while it may look a lot like a D610, the D750 feels rather different, thanks to its magnesium alloy shell. This allows it to be lighter than the 610, which uses a plastic composite body on a...

  • Possibly you're capable of seeing that your source is saying the opposite of what you are. You claim that the light decreases due to the inverse square law as the focal length gets bigger. He says...

  • @dtmateojr - "Grain is what you call noise in digital." - up to a point, they are both a reflection of haow many photons you've counted.
    "Does the grain change when you expose 35mm and 8x10 Ektar...

  • @ dtmatejor
    If you'd beother ed to look at the post Joe referred you to, rather than just dismissing it, you'd have seen that the equivalence for film was based on just the same idea as digital....

  • @Androole re:"Of course, in these examples the smaller sensors will actually tend to be slightly better in terms of real-world signal-to-noise ratio. 1" is not a full stop behind M4/3, M4/3 is not...

  • When equivalence might be useful:
    1. When someone who has developed their technique on one format is thinking of moving to another, it gives a guide as to which settings to use to achieve the...

  • @boggis the cat re: "almost nobody wants to reproduce a shot as closely as possible using two systems, so "equivalent photos" is a pointless confusing factor."
    I don't think that's true. I don't...

  • @ Fygaren
    "Theta is the range of half-angles of whitch the light can enter the lens."

    Which is defined by?.....

    "I dont see the contradiction.Both depends on aperture is what Ive been...

  • @ Zdrasviti, re: "pixel size is the most important thing in terms of image quality thats why 12 mp full frame ( d3-d700) sensor is still the lowest noise level on planet."
    Wrong on both counts....

  • @MichaelJP, re: "that is the sensor performance at different ISO,
    that is how the sensor behaves with more amplification of the signal from each pixel".
    The signal to noise ratio of a competently...

  • @fygaren

    Interesting. I found the following that supports it:
    "f/number = 1 / [2sin(theta)]
    For very small values of theta sin(theta) can be approximated simply by theta which then allows us to...

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bobn2 has not added any gear yet.
Total messages 5
Threads started 0
Last post Oct 6, 2013
Total comments 56
Total likes 73
Last post 3 weeks ago
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Photos uploaded 211
Last upload Nov 28, 2010
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