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photomd

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Posts posted by photomd

  1. Dear Friends--

     

    I use Canon D10 with two 550EX kit. I want to control the amount of

    fill flash added to the shadows that are casted by ambient natural

    light. My dilemma is how Ican figure out the flash:ambient light

    ratio so I can get a darker background for example or a soft balanced

    illumination of the subject, etc. How Can I tell that this flash

    setting will render the subject 2+ overexposed (i.e the background 2-

    underexosed) without using a separate meter? Is there a function on

    the 550EX to set the ratio of F:A light similar to the function that

    set the ratio between flash A and B?

     

    Thank you

  2. Hi everyone--

     

    I am new to macro lighting. I have Canon 10D with two 550EXs, flash

    bracket and two macro plates (that I hooked perpendicularily so that

    to allow movement of the camera in the horizontal plain) Now, the

    problem that I face is two folds. 1- I cannot get max DOF with

    resonalble shutter speed (faster than 1/60) to prevent hand tremors

    (I am a shaky guy!) 2- this set doesn't allow for creative lighting.

    I need your advice regarding affordable, flexible and versatile

    lighting kit that allow me to lighten macros in additon to creat

    spot lights....etc. Can the same kit be used for portaits (1-2

    person portraits)?

     

    Thank you for your help and advise.

  3. Dear friends--

     

    I have recently received JTL kit consists of 2-300w strobs (an

    umbrella and a softbox). As I went through the manual I realized that

    its GN is 54m (ISO 100). I already have canon 550EX kit (2 flashes

    and an on-camera transmitter). Its GN is 55m (ISO 100). Should I

    prefer the JTL kit on the 550EX for portraits and small objects still

    life. Do you recommend that I buy stands and two 44'' umbrellas for

    the 550EX kit and return the JTL kit.

    BTW, be adviced that the sync cord of the JTL kit does not match my

    camera (Canon 10D) nor my light meter (Sekonic L- 358).

     

    Do you konw what I need to buy to trigger the strobes wirelessly from

    the camera and the light meter?

     

    Thanks

  4. Regarding all the responses about the exposure part of my comment... I went outside during the last hour of a sunny day. I pointed 10D to trees where the tonality are midtone to -1. The picture in the viewfinder was +1 to +1.5 overexposed. Should I redo it using the rebel (and I did it before) it appears midtone (provided in both cases the shot was with EC set at 0) I will repeat the test tomorrow using 18% gray card and I will let you know.
  5. Dear friends -

     

    I have finally received my 10D yesterday and I am so excited about

    it!

     

    I want to share the following thoughts with you, hopefully, to open

    a useful discussion -

     

    1- Regarding the 1.6 "telephoto" effect. I am afraid that this

    statement can be misleading. "Telephoto effect" as a term gives me

    the impression of CROPPING+MAGNIFICATION. But my simple, primitive

    tests confirm the cropping but not the MAGNIFICATION. I pointed my

    Canon 75-300 on an object big enough to exactly fit between the

    upper and lower AF points that appears in the viewfinder. I noticed

    that the object fits between the two points at 75mm (on 10d) and

    around 85mm (on Rebel 2000) not 120mm (75X1.6) as I expected. I

    initially concluded that even though the image is further cropped

    the objects are not bigger. please try it and let me know.

     

    2- I noticed that the Exposure compensation (EC) mechanism in 10D is

    the opposite to its counterpart in Rebel 2000. I learned that the

    first rule in exposure (in analog cameras) that the meter "tries" to

    make the object "look" midtone. So if I shoot a bright object I have

    to compensated by moving the EC indicator to + and if I am shooting

    a dark object I have to move it to -. I noticed that the

    compensation on 10D is rather the opposite. Excuse me, if this fact

    is taken for granted. After all, I am still a novice (D)photographer.

     

    3- Last but not least, I have to thank photo.net for the good advice

    about the 10D and Ritzcamera. The 10D: $1500. Ritzcamera courtious

    service: PRICELESS.

     

    Thank you and I hope to receive some comments.

     

    Dr. Nabil Majid

  6. Dear Brian and Bob:

     

    No doubt that Photo.net is a great asset to online photography. I

    like everything it brings home - tutorials, forums, reviews, and

    best of all, photos from all around the world and from pros and

    amateurs alike.

     

    I have two suggestions to further improve this site. Probably you've

    dealt with them in the past and my opinion would then be just a

    reminder.

     

    1- I believe that the default setting of high-rated photos (highest

    ratings in the last three days) can be more meaningful and would

    more closely refect the outstanding status of the photo if we take

    both the number of ratings and the average of O&A into account. I,

    therefor, suggests the Photo Index number that is calculated as (A+O)

    *n (where n is the number of ratings). In this case, we will prevent

    a photo that is less "outstanding" to be ranked higher merely

    because more people saw it and prevent photo to be ranked higher (as

    per higher rating setting) only because of two odd 7s.

     

    2- I also suggest to activate the search engine. It is so difficult

    to follow someone's work without these search engines. You can

    disable the rating ability to prevent biased rating if this is a

    concern (last time I checked the search engines they were disabled)

     

    Lastly, I highly recommend to put "home" URL from all the pages

    and "High-rated photos" URL from the "add a comment" page. When I

    need to check my portfolio I cannot go back to the front page

    directly. I have to go to "my workshop" then I find "home" URL

    there. Going back from "add a comment" page is even a bigger hassle.

    I either have to go to high-rated photo and scroll through the pages

    from the beginning or I have to keep pressing the "back" arrow.

     

    Well, it turned to be three or four suggestion. Not bad.

     

    Thank you for you attention to these matters.

     

    Nabil Majid

  7. Dear friends:

     

    I have a Rebel 2000 and a Sunpak PZ4000AF mounted on a Strobo camera

    flip bracket. As you may know, the creative zone offers five modes -

    A-DEP, M, Av, Tv and P. I noticed that, when the flash is on, A-DEP

    and P set the camera on 1/90 and largest available shutter. Exposure

    compensation only change the pointer location against the exposure

    meter but not the f/stop or the time. In M mode I can set everything

    manually. While in Av and Tv modes, the f/stop will be set to the

    largest available.

    I have two questions.

    1- Which mode utilizes the flash as fill in and which does make it

    the main source of light?

    2- How can I darken the background? is there a certain distance the

    background should be at to be darkened?

     

    Thank you

  8. Dear Friends:

     

    I bought Canoscan FS2720.I was disappointed of the color saturation

    of the scanned picture. It looked on the monitor as if I am looking

    at the slide through a foggy/cloudy glass. I tried digital

    corrections (that I hate). I was not successful so I returned it

    back. I am thinking of buying Nikon scanner. The price is daunting

    though. I wonder if anyone has an advice - a scanner that is

    reasonablly priced yet gives very high quality color sat and details.

    Thank you

  9. Dear friends:

     

    I have a Rebel 2000 and a Bogen/Manfrotto 3001. I had a pan/tilt

    head. It was inconvenient. I bought a Bogen 3055 ball head. It was

    better (and heavier!)but more practical. I noticed that in order to

    unlock the ball I have to (almost) kick the lock open which always

    resulted in sudden drop of the camera. The pan lock was not that

    tight though. I returned this head back. My search led me to Kirk B1

    head. As much praises there are, the price does force for a

    thoughtful reconsideration. Do you think I need Kirk B1 for semi-

    serious nature and macro photography? Is there another ball head out

    there with same performance?

    Thank you.

  10. Dear Friends:

     

    I bought Canoscan FS2720.I was disappointed of the color saturation

    of the scanned picture. It looked on the monitor as if I am looking

    at the slide through a foggy/cloudy glass. I tried digital

    corrections (that I hate). I was not successful so I returned it

    back. I am thinking of buying Nikon scanner. The price is daunting

    though. I wonder if anyone has an advice - a scanner that is

    reasonablly priced yet gives very high quality color sat and details.

    Thank you

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