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olivier_de_lame

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Posts posted by olivier_de_lame

  1. I would simply avoid using a flash on a baby less than one year; I am not a specialist, and I am not sure that an ophthalmologist would really know what is the effect of a very short but very powerfull light on these sensitive eyes.

     

    I am sure that black eyes are less sensitive than blue (or green) eyes, and the color of the eyes (at least for hazel eyes e.g.) changes during the first years of the baby.

     

    So my rule (not educated at all) is: no flash before the color of the eyes is stabilized.

     

    Regards,

     

    Olivier

  2. Hi,

     

    I have 135/2L, but I do not have (and do not like) zoom. The big advantage of 135/2L is that you can use it at F2 and get a very sharp photo. with 70-200/4L I assume you would need to go to F 4.5 or F5.6 to get the same sharpness, but than you won't have a much larger DOF.

     

    I use F2 mainly to get this DOF.

     

    I am not sure to understand why you envisage the 300/4L: only for posed outside model, I am not sure how you can use it for portrait.

    Notice that 135mm is already quite long for portrait.

     

    So you should see if you need F2.

     

    Regards,

     

    Olivier.

  3. Hi,

     

    1) I have 135mm 2L and I use film (that is full frame). Such a problem would be huge in full frame. I do not have such a problem.

     

    2) Using recomposition for testing the lens is problematic in itself. The problem is that the distance from the film (sensor) plane to the object is changed when you use recomposition. At 135mm @ F2, such a small difference is enough to create a bad focussing.

     

    Regards,

     

    Olivier

  4. Hi,

     

    I am not sure about this but I believe it will NOT work with SCA 301. It will work (I think) with the SCA 311 and I am practically sure it will work with SCA 312/AF or SCA 312/2-AF. I have had both SCA 312/AF and SCA 312/2-AF and both worked with Metz 45 CT and Elan 7.

     

    To get a better answer, ask http://www.metz.de/ -> english -> Photo electronics -> Contact: Support Metz Photo Electronics / Mecablitz

    Email.

     

    Regards,

     

    Olivier

  5. Hi,

     

    Question has been asken more than the number of Canon 1.8 lenses available. Yet I have something to add.

     

    1) I do not have had the 1.8 Mark II: I have 1.8 Mark I and 1.4 . I bought the 1.4 because I felt the AF speed of 1.8 Mark I is too slow. Apparently the AF of Mark II is slightly faster.

     

    2) I also read sometimes about 1.4 not being sharp @ f1.4 . Of course it is not as sharp than @ f8, but @ f2 I could not see a difference vs. 1.8 Mark I . Even @ f1.4 it is quite acceptable, but it is sometimes difficult to insure a good focus @ f1.4 (I do people photography, and I use f 1.4 when there is not enough light only).

     

    Regards,

     

    Olivier

  6. Hi,

     

    Before going to buy a new camera :-); I have an Elan 7 and it happens often to me.

     

    1) When you recompose, you have to correct the focus: the distance between the film plane and your subject has changed.

     

    2) To get good candids, in general you do not have time to recompose: you have to take the photo just when you get the focus.

     

    3) To use manual focus, I focus on an object, and I wait that my subject move to this distance to take the photo.

     

    4) As a previous answer said, you should consider to step down, to increase your depth of focus.

     

     

    Regards,

     

    Olivier

  7. Hi,

     

    The bigest difference is whether the Bar-Mitzwa is on a Saterday or a Jewish Hollyday (e.g. Shavuoth) or on a week day. In the first case you won't be allowed to take photography at all (sorry, it does not matter if you are Jewish or not) in the last case photo should be allowed flash perhaps. In any cases you should speak with the rabbi. He will also be able to answer your other questions.

     

    The length of the service is also dependant on the day, but for a week day (no Saterday nor Hollyday (where in any case you won't be allowed to take photo at all)) it takes more of less one hour. The highlight is of course when the Bar-Mitzwa goes to read to the Torah, but also in some case when he reads a text he has prepared after the Torah has been put in place.

     

    About the presence of women near the Bar-Mitzwa (as one previous answer pointed), there are some difference following the rabbi. In general women will not come very close to where the Torah is read (here also there are some interpretation). But the separation between men and women is not always so strict. Here also you should speak with the rabbi.

     

    In fact it is quite similar as photos in a church: you have to speak beforehand with the rabbi, just as you would speak with the Priest before taking photos in a church.

     

    Regards,

     

    Olivier

  8. Hi,

     

    Contrarily to a previous answer, from my experience (I bought only lenses on grey marked, but I assume it is the same as for a camera), when you buy on grey marked you get a warranty from the supplier (e.g. B&H). I think before going to this, I would send a mail to B&H, explaining your concern and asking if they have a solution.

     

    Regards,

     

     

    Olivier.

  9. Hi,

     

    I have done it once. Notice I am not responsible for the consequences of course.

     

    I removed the back plastic plate of the NiCa carefully. Then I had to remove two screws and un-solder the connections. From then the rest is pretty straigtforward.

     

    Notice I replaced the battery of 50mAh with much higher capacity without problem.

     

    Regards, (and take care)

     

    Olivier.

  10. Hi,

     

    I have five lenses (sorted by buying dates):

    28-90mm f4-5.6 USM

     

    50mm f1.8

     

    135mm f2 L USM

     

    24 mm f2.8

     

    50mm f1.4 USM

     

    Sorted by (what I feel to be) AF speed:

     

    28-90 f4.5.6 USM

     

    135mm f2 L USM

     

    50mm f1.4 USM

     

    24mm f2.8

     

    50mm f1.8 Mark I

     

    My explanation:

     

    28-90 is so light, it is really easy to go fast with it.

     

    135 is heavy, but has f2 and a ring USM

     

    50mm 1.4 is not so heavy but has only a micro USM and uses linear extension

     

    24mm is actually quite fast, because it is light and has internal (rear) focusing. However it has only an afd motor.

     

    50mm 1.8 is quite slow, because although it is light, it uses linear extension focusing, and has only a micro motor.

     

    In fact the explanation is not really important. The fact is that 50mm 1.4 is a good lens, with a good building quality, and a quite fast AF. However both the AF and the building quality is not what should be expected from the "Normal" lens that is the Canon reference. Enough for me, but to be honest, I would expect Canon to anounce a new 50mm (f 1.4 ?, f 1.0?) with both a good fast ring USM (applicable to ETTL-II) and a better building quality.

     

    Regards,

     

    Olivier.

  11. Hi,

     

    You will probably get lots of answers in the two directions. I have EF 135 f/2 L USM, and I am very satisfied with it.

     

    + for 100 mm:

     

    + If you want to take a full portrait (that is from feet till head) you need to be "only" 5.55 m from the subject (18.5 ft); inside it can make a difference (135mm -> 7.5 m ~ 25 ft)

     

    + cheaper

     

    + for 135mm:

     

    + Slightly beter optic

     

    + Higher magnification: closest focusing distance is 0.9m (3 ft): same as 100mm for a longer focal distance (in practice that means you can take closer close-up).

     

    + Compatible with EF extenders.

     

    Regards,

     

    Olivier

  12. Hi,

     

    I have had 50mm 1.8 mark I for a while (I still have it); a very good lens but I have recently bought the 50mm 1.4 USM, because of the USM. The optical performance of MY 50mm 1.4 USM is slightly better that this of MY 50mm 1.8 mark I; from the comments I see all the time, it seems that for both lenses there is a big variation between lenses of the same type. For instance I did not see barrel distorsion (but I do not do macro).

     

    Regards,

     

    Olivier.

  13. Hi,

     

    I cannot do a full translation, but here are the main differences with respect with EOS 1D (I):

     

    - 8.2 Megapixels

     

    - Up to 8.5 frames/second for the new buffer of 40 Jpeg frames or 20 RAW frames

     

    - New processor New white balance (ultra-precise)

     

    - 2 slots for CF and SD

     

    - 50 to 3200 ISO (in fact 100 to 1600, but with possibility to go to 50 and 3200 trough CF (??))

     

    - New E-TTL (They call this E-TTL II); will work with EX

     

    - LCD screen of 230000 pixels.

     

    - CMOS sensor.

     

    - Much more expensive :-) (Did you expect the opposite ?)

     

    Regards,

     

    Olivier

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