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Reviews for Canon Speedlite 420EX Flash Light

TTL, E-TTL - MPN: 4590A009

  • 5
  By member: shelgoldberg - Jan 19, 2005

Canon Speedlite 420EX Flash Light

Strengths: Powerful, versatile flash totally compatible with my Canon 20D. Significant improvement over the camera's built-in flash. Not inexpensive, but worth the money.

Weakness: Battery compartment door felt like it would break first time I tried to close it; trust the instruction book! Still need to brighten pics in Photoshop.

If you're not into multiple-flash this is the one to get. A definite improvement over built-in flash. TTL and auto-zoom are flawless. Solid unit, worth the money!

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  • 5
  By member: regeneron - Jan 16, 2005

Canon Speedlite 420EX Flash Light

Strengths: Fast recharge, very powerful, TTL, infared slave capability.

Weakness: Flimsy battery door.

I also use this flash on the Digital Rebel. It is amazing the difference in quality from the on-board flash of the camera. The bounce flash is very flexible and takes the harshness off of the direct view. Would strongly recommend to amatuer who think they are getting great shots with the built-in flash. You will not be sorry you invested the additional money for this flash.

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  • 4
  By member: simbawang - Oct 19, 2005

Good entry level flash for your digital rebel

Strengths: 1. Zoom flash, enough power for daily usage and automatic focus according to your zoom 2. E-TTL, quite acurate 3. Flash recharge in decent speed with rechargeable batteries 4. Rotate and tilts

Weakness: 1. Shoe mounting, the extender cord is at least $40 if you want to mount this flash on a bracket. 2. Flimsy plastic battery door 3. Noizy

The difference in indoor photo is very obvious as soon as you switch from the build in flash to 420EX. But it does add on plenty of weight. I tried several and finally settiled on 420ex for the price to quality ratio. No other flash comes close to the accuracy of the canon brand flash on a canon camera. The price is higher but it's well worth it. As soon as you see the effect of flash bouncing from roof.

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  • 4
  By member: billj1824a - Jul 23, 2005

Great flash

Strengths: Fully automatic, bounce capability, totally integrated with camera. Powerful focus assist, swivel head, fully e-TTL capable, remotely controllable, FEC capable, compact.

Weakness: Remote control only as slave, adds bulk and weight to the camera, no manual controls. Not as versatile as more expensive flashes; takes at least 4 seconds between flashes.

Canon Users: Time to step up to better flash photography? The 420EX may provide the most flash for the buck.

Size and user interface of the 420EX are well balanced and even for novices quickly to master as there is very few manual controls on the 420EX. After all, one can always shoot in full automated mode and the e-TTL guarantees significant improvements over most integrated flashes. Unmatched by any integrated solution is the bounce capability which boosts the natural appeal significantly. This may also be the one reason to step up to a 420EX instead of a 220EX. (A 550EX is overkill for users that don't need more than one flash.)

For getting the most out of an advanced flash unit like the 420EX, make sure to use it with a fully e-TTL capable EOS camera to access all the functionality. (Canon refers to that as a Type-A camera.)

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  • 5
  By member: pdwillson - Mar 29, 2005

420EX

Strengths: Flash power, swivel head, E-TTL technology

Weakness: Adds some noticable weight to the camera

Photography 101: Just about any picture you take can be improved with an "automatic" (which means it turns itself off when the correct lighting level is reached) flash, including pictures taken in sunlight. The built-in flash on my Canon 300D (Digital Rebel) is simply not powerful enough to handle most outdoor "fill flash" needs. For indoor pictures, the 420EX's swivel head allows you to "bounce" the flash from wall or ceiling, thus eliminating dark shadows behind your subject. You can find the 420EX for less than $200 and it's well worth the money spent.

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  • 5
  By member: victorxian - May 8, 2005

Canon Speedlite 420EX Flash Light

Strengths: Powerful

Weakness: No LCD screen

Very powerful. No shade when used with a telescope lens. The light looks very natural. I like the swivel head design. Sometimes I bounce the light to the wall or ceiling. Didn't find the battery door problem so far.

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  • 4
  By member: lsherris - Jul 17, 2005

Canon Speedlite 420EX Flash

Strengths: Much more powerful than camera flash

Weakness: None

There is no comparison between the quality of photos taken with the 420EX and those taken with the built-in camera flash. The range huge. Big groups and big rooms are not a problem. The flash automatically zooms in when you use longer focal length lenses, which also effectively increases the guide number. Bounce flash works well.


It is missing a few bells and whistles such as manual mode and built-in light diffuser, but at $200 less than the 580EX it is a great deal.

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  • 5
  By member: xiaowei - Jul 7, 2005

Great flash

Strengths: quality, function

Weakness: can't use as master flash in a multi flash setup

The first impression when I get my 420ex is that it is solid and heavy. The casing is made from strong high quality plastic. The tilt and pan action is smooth with positive clicks at various degrees. This won't really improve your picture quality, but it definitely gives you full confidence on the overall quality of the product.

420ex's red auto focus assist beam is silent and eye-friendly (you'll know what I'm talking about if your camera, like my D350, fires its built-in flash to do the same job). Comparing to any built-in flash, the 420 is higher, more powerful and has a larger light surface, which all lead to better pictures. Bouncing the light off the ceiling or a wall also makes the light more natural. You can also get diffusers for it. Sto-fen omni bouncer is the most popular model.

Canon doesn't stress it, but the 420ex does support E-TTL II if your camera supports it.

If you upgrade to a better flash later, the 420ex can be used as a wireless slave in a multi flash setup.

Overall, I'm very pleased with my 420ex.

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  • 5
  By member: alvamark - Mar 26, 2005

Canon Speedlite 420EX Flash Light

Strengths: Very easy to use; tilt and swivel head offer lots of flexibility; is also much more powerful than camera's flash.

Weakness: None that I know of, other than it's kinda pricey, and to get a good price, you really need to shop around, which leads to Pricegrabber.com!

I have a Canon G3, which I've had now for a year and a half. I really like this camera, but I had always been frustrated by the limitations of the on-board flash. I had wanted to get an external flash ever since I got it, but I couldn't decide between getting a Canon flash or another brand, but I really think that a Canon EOS-compatible flash is the only way to go. I also have an Olympus C2000Z that I've probably ruined the flash on because I hooked up the flash sync to an older Sunpak flash. From everything I read, you really have to be careful with what you hook up on these things, since the circuitry is so delicate. So, rather than experiment with "brand x," and risk ruining another $700 camera, I decided to go with name brand.
I am very pleased with the Canon 420EX; I have no complaints at all. It fires up without a hitch, it apparently communicates with my G3 like it's supposed to, and I have had very few bad photos. The only ones that have been less than perfect were because there was lots of contrast between light and dark, and everything was overexposed, but bracketing helps that out. I have no complaints with this flash. Another reason that I got it was because I will probably get something more advanced, like a Canon digital SLR at some time, and I assume that this will be compatible with all of those for at least the next few years.

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  • 3
  By member: skywalker168 - Nov 16, 2005

Speedlite 420ex

Strengths: Light. Powerful. Reliable.

Weakness: No manual setting. E-TTL preflash cannot be turned off. Locks up with generic optical slave.

If you use this flash on the camera as an E-TTL flash, it's great. Powerful enough to light up a small room, and recycle very fast. It also has a zoom head to adjust to your lens. The head swivels both directions so it is great for bounce light. However, if you want to use it off the camera or in a studio setup, beware.

1. There is no easy way to take this flash off camera. Most of generic optical slave trigger doesn't work with this flash. It fires but locks up after one flash.
2. It has no manual control. It always fires at maxium power when not triggered by Canon device.
3. Pre-flash cannot be turned off. So it can not trigger any studio strobe. Pre-flash will fire other flashes prematurally.

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  • 4
  By member: arpitmdave - Jan 11, 2005

Canon Speedlite 420EX Flash Light

Strengths: Flexible bounce head. TTL works excellently.

Weakness: Flimsy battery cover. No battery pack - must use AA's, but rechargeables are a plus.

I use this flash with a Canon Digital Rebel, and it is excellent. The guide number is sufficient for most casual photography, even in the field. However, it is not effective at the higher end, and I have found that it's flash capabilities falter when shooting at the upper end of it's range and is generally ineffective at the max range stated by Canon. However, if used properly, especially well within it's range, it is an EXTREMELY powerful flash. I recommend +2/3 FEC on the Rebel (this isn't a standard feature, you'll have to find the program online to make that change.)

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  • 2
  By member: dhishi - Jul 18, 2005

Canon Speedlite 420EX

Strengths: Rotates horizontal and vertical. Has wireless capability and autfocus assist.

Weakness: Can't use all the features with PRO1. Overpriced for its use. Works wireless only if you by the wireless adapter. Bulky and heavy. Noisy mechanism.

Product works great. Having an external flash make your pictures sharp and clear and eliminate any red-eye. Having a PRO1, I was looking for a flash that I can use. The 420EX is the closest product with a reasonable price tag. The pictures turns out great. You can do a lot of things to create different effects ( using horizontal & vertical swivel ). I was wrong when I thought I could use the built-in infra-red focus assist of the 420EX. Thanks Canon !

Would I buy this again - probably not. Alternate product worth considering are :

Sigma DG500-EF SUPER
Sunpak PZ-40X

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