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FORUMS General Gear Talk Flash and Studio Lighting 
Thread started 24 May 2006 (Wednesday) 21:25
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Speedotron 2403cx power suppy not good with digital?

 
o2happpy
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May 24, 2006 21:25 |  #1

Speedotron 2403cx power suppy not good with digital photography. This is what a Rep from B&H photo said. Is this true? Rep said that the light would overexpose because the speedotron does not have varible power control. Have anyone experience with this. thanks

Canon 30D 17-85kit


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Black ­ Ricco
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May 24, 2006 22:55 |  #2

???? That rep sounds like he doesn't know what he's talking about which is strange for B&H because those guys are usually up to speed. Are you sure you understood him correctly? Because I'm pretty sure that power pack has variable power.

From Adorama's description of the 2403CX power pack...

The 2403cx LV provides the studio photographer with the maximum in sophisticated lighting versatility. Utilizing true power output rationing, variable dial-down power control, and six quick release light unit outlets, there are 530 power options available from this 2400Ws pack. A remote control is available as an accessory to the 2403cx.




  
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o2happpy
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May 25, 2006 00:08 as a reply to  @ Black Ricco's post |  #3

Here is what the rep wrote me.

"Im worried the speedo kit wont be able to be toned down in power
for use in digital.

Digital Cameras & Lighting

Digital Cameras need much less light for exposure, so you need Lighting that has a variable power control.

This is called Digital Ready.

Regular Lighting will overexpose."

I will give them a call tomorrow to find out more. thanks


Canon 60D
17-85mm lens kit
24-70mm 2.8 L
50mm 1.4
580 EX Flash

  
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Wilt
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May 25, 2006 09:00 |  #4

<<Here is what the rep wrote me: "Digital Cameras need much less light for exposure, so you need Lighting that has a variable power control. This is called Digital Ready. Regular Lighting will overexpose.">>

Translated: "Buy what I want to sell you"

What a load of misinformation! Film has ISO 100, digital cameras have ISO 100. The same light meter works for both. So why on earth would it be true that "Regular lighting with overexpose"?!?!?! If it overexposes digital, it would overexpose film, too, and Speedotron would have gone out of business for building products not suitable for sale!


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Sledhed
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May 25, 2006 18:10 |  #5

It absolutely DOES have variable power control. I have a set of Speedotron Black line strobes and they are top notch. Get the phone number off of Speedotron's website and call and talk to Joe, he will tell you every thing you need to know. I just bought one of their new radio control units for mine and it is fantastic.

http://www.speedotron.​com/Black.htm (external link)


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Black ­ Ricco
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May 25, 2006 18:24 |  #6

Translated: "Buy what I want to sell you"

Yup! I speak fluent salesmanese and that's exactly what he said.

And besides, that's what f/22 is for. ;)




  
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Don ­ Powell
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May 25, 2006 18:30 as a reply to  @ Black Ricco's post |  #7

There are many ways to kill the amount of light. Most times we are trying to get MORE, so we can lower the ISO.




  
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Black ­ Ricco
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May 25, 2006 18:36 |  #8

This power pack will overexpose your digital photographs. LOL That is pretty funny. It's no different than the old, you don't want that strobe unit, it'll fry your digital camera...this is the one you want.




  
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Wilt
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May 25, 2006 18:54 |  #9

<<It's no different than the old, you don't want that strobe unit, it'll fry your digital camera...this is the one you want.>>

But some electronic flash units DO FRY Canon flash sync circuits! That's why the latest Canons (350, 20D, 30D, 5D) bill the 250v tolerance at the PC connector.


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Black ­ Ricco
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May 25, 2006 19:09 |  #10

But some electronic flash units DO FRY Canon flash sync circuits!

I have heard that but I've never known anyone that's happened to, and I know folks who have used 611's, 522's, 45CT-1's 283's, 285's, and Norman's. All older flash units used on new digital cameras and not a bit of trouble.




  
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Sledhed
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May 25, 2006 21:33 as a reply to  @ Black Ricco's post |  #11

Black Ricco wrote:
I have heard that but I've never known anyone that's happened to, and I know folks who have used 611's, 522's, 45CT-1's 283's, 285's, and Norman's. All older flash units used on new digital cameras and not a bit of trouble.

I know on a 20D the pc sync is 250 V but the hotshoe is around 6 V, so if you have an older flash with a higher voltage you run the risk of frying your camera.

http://www.botzilla.co​m/photo/strobeVolts.ht​ml (external link)


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pparker
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May 26, 2006 07:10 |  #12

I believe the power supply you need is the Speedotron 2403 CX LV (low voltage). The older units produced a higer voltage that is not suitable for todays digitals.


Pete Parker from a three stoplight town in Texas

http://pparker.zenfoli​o.com/p610500614/ (external link)

  
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Don ­ Powell
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May 26, 2006 07:46 as a reply to  @ pparker's post |  #13

I have the Rebel XT and I don't have a PC connection, so I bought a Speedotron safe sync.




  
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Speedotron 2403cx power suppy not good with digital?
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