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scavallucci

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Posts posted by scavallucci

  1. Last weekend I happened to rent a 200 2.8L, a 1.4x and a 2x TC, and ran a fairly extensive set of tests, as I was trying to decide what telephoto prime to buy. With the extender 1.4x the difference was negligible (wide open the corners were slightly softer than without the extender), while with the 2x the difference was more evident, having to stop down to f/8 to get back the initial corner sharpness.

    Also, while the 1.4x shows minimal CA (no CA at all without TCs), using the 2x the amount of CA is more significant. After this trial,

    I think I'm leaning towards 300/4 IS + 1.4x TC

     

    HTH,

    Stefano

  2. Here is the problem I'm having: I was looking at pictures on

    the "Rate Recent Queue" for Landscapes. I added a comment on one but accidentally clicked on "skip photo" before rating it... now I don't seem to be able in any way to post the rating on that picture, I always get "Rating

    Insert Failed".

  3. Mine is broken as well:

     

    A member of the www.photo.net community since September 17, 2003. (Mark this person as interesting)HTTP/1.0 500 Internal Server Error MIME-Version: 1.0 Date: Sun, 16 Jan 2005 17:18:17 GMT Server: AOLserver/4.0 Content-Type: text/html Content-Length: 540 Connection: close

    Server Error

    The requested URL cannot be accessed due to a system error on this server.

     

    AOLserver/4.0 on http://www.photo.net

  4. Thanks Steve,

     

    The hood for the Mark II seems a little bulky to me. I read almost

    everywhere it does a better job preventing flare, but knowing myself

    I can tell you I would use the embedded one every time I have to while I don't know if I'd do the same with the detachable one...

  5. Thanks a lot everybody for your feedbacks... I was also attracted by the 200/2.8 because of its relatively small size, especially compared to 300/4 or 400/5.6 At this point I think I'll keep the 2X and start looking for a used 200/2.8 MkI (I kinda like the embedded hood idea).

    Ronald, could you email me the scans?

  6. I stumbled across a deal I couldn't pass up on a new extender EF 2X,

    so I'm now trying to figure out what to do with it... I always wanted to

    start shooting birds, but if I want to retain focus on my DReb I need

    to consider an f/2.8 lens... Considering that 400/2.8, 300/2.8 and

    200/1.8 are out of the picture, that leaves me with the 200/2.8.

    Now my question is: I haven't been able to find samples/reviews

    of this match, so I was wondering if somebody here ever tried it and

    whether he/she liked it or not

     

    Thanks a lot in advance,

    Stefano

  7. Hi Aaron,

     

    I used the wireless Remote RC1 on the non-MLU shots... I am also a

    little puzzled by one thing: why does the headlight trail on the

    pictures looks like a composition of dots rather than a smooth line?

     

    I always assumed that during a long exposure the sensor was left for

    the whole time in charge accumulation mode, while here it looks like

    the camera is transferring the raw sensor data at a fixed rate and adding them in the system memory, resulting in loss of exposure during the sensor unload intervals ... am I just speculating?

  8. I didn't want to check the differences at 8 second exposures, that was only a way to get easily a diagram of the camera oscillation in time

    (using the car head/taillights) :) I agree with you, on a 8s exposure

    the average light captured by each photosite does not depend a whole lot on the oscillations of the initial phase... This apparently is not valid with the shots taken with the cheap tripod though.

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