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  1. #41
    Sirius Glass's Avatar
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    Quote Originally Posted by Steve Smith View Post
    Yup.
    Warning!! Handling a Hasselblad can be harmful to your financial well being!

    Nothing beats a great piece of glass!

    I leave the digital work for the urologists and proctologists.

  2. #42
    narsuitus's Avatar
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    Years ago, I used electronic flash for wedding candids but used flash bulbs to shoot posed shots of large groups. I went back through my notes and found the following information:

    GE 11B medium screw base flash bulb in Graflex flash with 7-inch reflector
    ASA 100 film
    10 feet flash to subject distance
    f/16

    Sylvania 25B bayonet base flash bulb in Graflex flash with 7-inch reflector
    ASA 100 film
    10 feet flash to subject distance
    f/11

    I hope my notes are of some use to you.

  3. #43
    JohnRichard's Avatar
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    Quote Originally Posted by narsuitus View Post
    Years ago, I used electronic flash for wedding candids but used flash bulbs to shoot posed shots of large groups. I went back through my notes and found the following information:

    GE 11B medium screw base flash bulb in Graflex flash with 7-inch reflector
    ASA 100 film
    10 feet flash to subject distance
    f/16

    Sylvania 25B bayonet base flash bulb in Graflex flash with 7-inch reflector
    ASA 100 film
    10 feet flash to subject distance
    f/11

    I hope my notes are of some use to you.

    Still useful.
    That is what I am finding regarding bulbs in general. The manufactures notes regarding bulb timing/f-stop are what everyone else has suggested.
    I'll be using #25 bulbs in a 5-inch reflector, with HP5+.
    I'm going to shoot at either f/16 or 22... Still have to test.

    Thanks for the info anyhow!
    - J. Richard
    4x5 Speed Graphic, Looking for another 8x10.

  4. #44
    Anscojohn's Avatar
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    Have you checked your solenoid for proper flash synch?
    John, Mount Vernon, Virginia USA

  5. #45
    JohnRichard's Avatar
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    Quote Originally Posted by Anscojohn View Post
    Have you checked your solenoid for proper flash synch?
    I don't have a solenoid.
    - J. Richard
    4x5 Speed Graphic, Looking for another 8x10.

  6. #46

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    Quote Originally Posted by JohnRichard View Post
    Still have to test.
    I'm glad to hear this. For a while I thought you only had 6 bulbs and thought you'd have 100% success without ever testing.

    The data points offered by narsuitus generally agree with my Kodak PhotGuide... which I've found accurate when shooting even chromes, so I tend to swear by it.

    As before, GN = 500 for what you want to do... with no shutter efficiency correction (1/25 or slower). For 1/100 the GN becomes 350.

    To shoot what you spec'd a couple of posts ago, try as a starting point:

    1/100 @ f/22 for 15' distances, or f/16 for 22' distances, or f/11 for 30'.

  7. #47
    JohnRichard's Avatar
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    OK!

    So, its night time, which means its dark here. So, I shot two #11'ses and two #25's. Then, after I had a great time talking to the neighbors about the big Speed Graphic, I relaised I didn't have enough developer to do a proper 1:9 in the 4x5 daylight tank, which takes massive amounts of liquid. SO, the negs came out way underdeveloped. STILL, there was enough detail in what I could see, that: At f11 @ 1/25 I got about 30' in focus. Rail set with Infinity at the 10' mark (or maybe 15... ) AND, I learned something else. You have to take the dark slide out, or nothing happens.
    I was excited, and forgot on one. So, a wasted bulb. People still clapped at the brightness, but then I just ran and got another one, and... problem solved. I don't think I want to go f16, there is something about it that seems TOO much... In fact, I may go f8 @ 1/25. I had my Ektar 127 set at Flash=20... the little slidey thing. I have the option to set it at 5... but I don't know if thats a good thing or not. Seem to work just fine... well I should say it FEELS right.

    Who knows.

    I'm going to test some more next week. I'll keep you posted.
    - J. Richard
    4x5 Speed Graphic, Looking for another 8x10.

  8. #48
    JohnRichard's Avatar
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    Well, the Wedding was a success. The Photographer and his wife were more interested in my Speed Graphic than in taking pictures. The crowd however, wasn't really paying attention to his puny little pixleator 9000 or whatever he had, until I fired off a #25. That got everyone's attention. I shot 6 sheets, and I think they will come out well. I was supprised that the photographer actually knew about films and speeds and pushing and what HP5+ was... We didn't get in each others way, and he took some pics with me and my Speed Graphic.

    I'm going to develop tomorrow, and I'll post the scans.
    - J. Richard
    4x5 Speed Graphic, Looking for another 8x10.

  9. #49

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    Quote Originally Posted by JohnRichard View Post
    Well, the Wedding was a success. ... I'm going to develop tomorrow, and I'll post the scans.
    COOL! Can't wait to see the results!

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