[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

Re: [APML] Photonics



-----BEGIN PGP SIGNED MESSAGE-----

>>>>> "Matt" == Matt BenDaniel <matt@starmatt.com> writes:

    Matt> I'm very impressed with the Tamron 17mm rectilinear lens,
    Matt> shot wide open here. It has some vignetting, but no
    Matt> significant aberrations, even in the corners. Previously I
    Matt> had been shopping around for a Zuiko 18mm lens, but the
    Matt> Tamron must be the winner, especially considering price.

The shot looks very nice.  I've wondered about the rectilinear lenses
because daytime folks seem to love them compared to the normal barrel
distortion one gets from a wide angle lens.  However, for AP, I'm not
so sure.  I notice the circular star trails are elliptical!

regards,

roland
- -- 
		       PGP Key ID: 66 BC 3B CD
Roland B. Roberts, PhD                             RL Enterprises
roland@rlenter.com                            6818 Madeline Court
roland@astrofoto.org                           Brooklyn, NY 11220

-----BEGIN PGP SIGNATURE-----
Version: 2.6.3ia
Charset: noconv
Comment: Processed by Mailcrypt 3.5.4, an Emacs/PGP interface

iQCVAwUBPt879uoW38lmvDvNAQEQkwP+KTamwKItJ3F3bIAFZSOU2+9++AIVtdR7
1c5+SN/ZapjeCL3T7uRLXcpGYnnd/xfni7wOoFzyV31rD9EaBPE4z5jLP4EQ0k9J
S6Itpykbs2z/tK/wi836XNxCx6UvZZpNX5w7oXqUoq7OcNW5XCxtamWSkJ5NkFYw
5Te259cRNNw=
=jufl
-----END PGP SIGNATURE-----
_______________________________________________
Astro-Photo mailing list
Astro-Photo@seds.org
http://seds.org/mailman/listinfo/astro-photo