Leonard Migliore

Leonard Migliore

Lives in United States Sunnyvale USA, CA, United States
Works as a Engineer
Has a website at http://www.laserk.com
Joined on Jan 4, 2004

Leonard Migliore's recent activity

  • Well, you certainly don't have much DoF at f/1.8. Also, the subject is off to one side (well-composed, by the way). So did you focus with the center spot and pan? You will lose focus big time ...
  • I have the Tamron. Mine is not very good even after being sent back to Tamron for repair. Sharpness is fair, contrast is low and exposure is inconsistent. What I suspect is that there is ...
  • Replied in UV Filter
    The nominal purpose of a UV filter is to improve sharpness by eliminating light that you can't see but affects the sensor. This occurred with film, which is sensitive to UV. With digital sensors, ...
  • I'd use the 18-140 outdoors; it's helpful to be able to zoom. Although I often use the 35mm at parties because the lens is small and makes the camera easier to carry around; having a big zoom gets ...
  • Replied in Image quality
    I did that (again, I'm guessing you mean an RX100). It's not bad compared to my Nikon DSLR. I'd say it's a little muddier on details, although that might be from my inexperience in processing the ...
  • Replied in Please stop
    Then what is your method for generating instant "likes" on all your posts?
  • Replied in Please stop
    Note that, in the drawing I provided, when the lens is open, rays from the outer part of the aperture are hitting the corners of the sensor at a shallow angle. When the lens is stopped down, those ...
  • Replied in Please stop
    Well, what happens is like this: When you stop the lens down, the range of angles decreases but the angle of the central ray remains the same. This looks like a self-referential comment to me; I'm ...
  • If you read the whole thing, that definition is only correct for a "thin" lens, which is an ideal construct that does not exist in reality. Even with a simple lens, the focal length is not the ...
  • They must have knuckled under to the pressure.
  • Replied in I had no idea
    Is this you?
  • So you've already found out what a meter's good for. I use the camera's meter for everything else.
  • No, you can just buy a flat one. But you already have one of those and you don't like it. When you get a plate that's designed for a particular camera, it can attach more securely and also not get ...
  • Well, you were having a quality issue with your existing plate (hard to tighten, doesn't stay tight); better quality often costs more.
  • Replied in Please stop
    Where do you get this stuff? Spherical aberrations are reduced when you stop down. You are confusing spherical aberration with diffraction, which does increase as you stop down. It's really not a ...
  • I looked at Kirk but they don't seem to do Sony stuff.
  • That's not the reason. You get bad corners when lens aberrations become significant. This is separate from the inclination of the rays, which is controlled by the location of the exit pupil. ...
  • RRS is Really Right Stuff http://www.reallyrightstuff.com/ They make camera accessories, including stuff for Sony's. They'd be real glad to sell you some off their web site: http://www.reallyrights ...
  • Well, what do you expect when the corners are gone? What do you expect when the corners are gone? That's not the reason. The reason is, you've cropped out the bad corners. Well, if you look at the ...
  • Replied in It may work
    But looking at B&H, they say the Tamron has a motor, meaning that it will AF on a D5500. http://www.bhphotovideo.com/c/product/583992-REG/Tamron_B001NII_700_SP_AF_10_24mm_f.html Regardless, it's a ...
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Total messages 11147
Threads started 20
Last post 3 min ago
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Last post Dec 5, 2011
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Photos uploaded 124
Last upload Jan 24, 2010