Lens question
in [Digital Cameras]
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From: J. Clarke on 3 Nov 2009 10:38 nospam wrote: > In article <hcpehb$vq0$2(a)adenine.netfront.net>, No spam please > <me(a)spamnotwelcome.org> wrote: > >>>> As I said >>>> earlier, a friend who operates an airfield radio found that her >>>> own radio receiver upset the aircraft's systems. >>> >>> but you didn't say how she determined that. did she turn on the >>> radio and the plane suddenly dive or make a sudden turn? how did >>> she rule out some other effect? >> >> As I understand it, the pilots found a malfunction and asked cabin >> crew to see if anyone was using a radio receiver or transmitter. I >> don't know the aircraft type. > > malfunctions can occur for a variety of reasons. that's not proof that > the radio was the cause. How about if turning it off fixed the problem and turning it back on resulted in it returning?
From: John Navas on 3 Nov 2009 11:04 On Tue, 03 Nov 2009 00:03:32 -0500, tony cooper <tony_cooper213(a)earthlink.net> wrote in <2beve558371hbukcr48a0ic6770v9aegjc(a)4ax.com>: >On Mon, 02 Nov 2009 20:29:21 -0800, John Navas >>Standard Optical Zoom "only" goes up 1o 480 mm, >>and Extended Optical Zoom goes up to 860 mm, >>quite sufficient for most birding, >>but those ranges are easily extended with a teleconverter >>to over 800 mm and over 1400 mm respectively. >> >>Much better than dSLR. :D > >And, of course, you have examples of your "better than dslr" bird >photographs ... I do indeed. :) -- Best regards, John Buying a dSLR doesn't make you a photographer, it makes you a dSLR owner. "The single most important component of a camera is the twelve inches behind it." -Ansel Adams
From: John Navas on 3 Nov 2009 11:05 On Mon, 02 Nov 2009 21:27:55 -0800, J�rgen Exner <jurgenex(a)hotmail.com> wrote in <qofve5la7lrts5g05rif3jp6ed94cdcr6m(a)4ax.com>: >John Navas <spamfilter1(a)navasgroup.com> wrote: >>Standard Optical Zoom "only" goes up 1o 480 mm, >>and Extended Optical Zoom goes up to 860 mm, > >What is "extended optical zoom"? An addon-lens? Automatic cropping of the image. What makes it better than cropping in post-processing is the ability to see a magnified final image. -- Best regards, John Buying a dSLR doesn't make you a photographer, it makes you a dSLR owner. "The single most important component of a camera is the twelve inches behind it." -Ansel Adams
From: John Navas on 3 Nov 2009 11:06 On Tue, 03 Nov 2009 20:50:13 +1000, Bob Larter <bobbylarter(a)gmail.com> wrote in <4aeffcd8(a)dnews.tpgi.com.au>: >John Navas wrote: >> On Mon, 02 Nov 2009 18:57:46 -0500, tony cooper >> <tony_cooper213(a)earthlink.net> wrote in >> <ebsue594peulupu5l57sp3jca4rquh16ge(a)4ax.com>: >> >>> On Mon, 02 Nov 2009 15:16:23 -0800, John Navas >>> <spamfilter1(a)navasgroup.com> wrote: >>> >>>> On Mon, 2 Nov 2009 10:21:01 -0000, "No spam please" >>>> <me(a)spamnotwelcome.org> wrote in <hcn098$2m11$1(a)adenine.netfront.net>: >>>> >>>>> I agree that a 3oomm lens isn't ideal for bird photography. Personally, I'd >>>>> love a fast 400mm but the cost, size and weight are beyond me. ... >>>> Panasonic with optically-stabilized Leica super-zoom lens is >>>> inexpensive, compact and light, excellent for birding. >>> Chickens, perhaps. Turkeys, ostriches, emus, and caged birds maybe. >>> Large birds that you can close enough to touch. >> >> Standard Optical Zoom "only" goes up 1o 480 mm, >> and Extended Optical Zoom goes > >ie; 'digital zoom'. *snicker* Nope. Your ignorance is showing. *snicker* yourself. How old are you, 8? > up to 860 mm, >> quite sufficient for most birding, >> but those ranges are easily extended with a teleconverter >> to over 800 mm and over 1400 mm respectively. >> >> Much better than dSLR. :D > >You've obviously never tried to use such a combination for real photography. Again, your ignorance is showing. -- Best regards, John Buying a dSLR doesn't make you a photographer, it makes you a dSLR owner. "The single most important component of a camera is the twelve inches behind it." -Ansel Adams
From: J�rgen Exner on 3 Nov 2009 11:18
John Navas <spamfilter1(a)navasgroup.com> wrote: >On Mon, 02 Nov 2009 21:27:55 -0800, J�rgen Exner <jurgenex(a)hotmail.com> >wrote in <qofve5la7lrts5g05rif3jp6ed94cdcr6m(a)4ax.com>: > >>John Navas <spamfilter1(a)navasgroup.com> wrote: >>>Standard Optical Zoom "only" goes up 1o 480 mm, >>>and Extended Optical Zoom goes up to 860 mm, >> >>What is "extended optical zoom"? An addon-lens? > >Automatic cropping of the image. And what does digital cropping have to do with "[extended] optical zoom"? Calling cropping zooming is plain lying (not by you but probably by marketing). jue |