Автор: deniac
Дата: 13-11-07 09:35
420-ката е свястна светкавица, но безспорно 430-ката я превъзхожда с "куп неща":
The list of Canon Speedlite 430EX Flash advantages/improvements over the 420ex is long.
Like the 580EX, the Canon Speedlite 430EX Flash utilizes a single button release for both the tilt and rotate locks (two separate buttons are required to be pressed to adjust the 420EX). A single grip/button press allows the flash head to be rotated and tilted at the same time. The single button release is a really nice enhancement.
Unlike the 420EX, the Canon Speedlite 430EX Flash has a Manual Flash Mode with flash output adjustable from full to 1/64 power (7 levels). If your subject is consistent (formal portraits for example), a manual flash output setting can eliminate shot-to-shot exposure variations. Manual control of the flash head zoom is also a differentiating feature.
FEC (Flash Exposure Compensation) can be set directly on the Canon Speedlite 430EX Flash in 1/3 stop increments up to +/- 3 stops. The 420EX required a camera body with this feature built in to use FEC.
Improvements in circuitry make the Canon Speedlite 430EX Flash recycle time 40% faster than the 420EX with a slightly increased max Guide Number. Like the 420EX, the 430EX is powered by 4 AA-size Alkaline Batteries (6V) or 4 AA-size NiMH Rechargeable (4.8V). Full power recycle time is 3.7 Seconds with alkaline batteries or - note this - 2 Seconds with NiMH batteries. NiMH batteries have much less internal resistance than Alkaline batteries resulting in significantly shorter re-cycle times. NiMH batteries also give more consistent (full) power until they are discharged while Alkalines will recycle the flash more and more slowly as they expend their life. Adding environmental concerns and cost to this equation should make the decision to use NiMH batteries a no-brainer. Buy 40 or 50 of them and use them in everything you own that accepts them. Buy a charger that charges the AAs in 60 minutes or less to make charging time less of a issue.
The Canon Speedlite 430EX Flash includes an LCD panel on rear of flash, the 420EX instead uses a series of lights.
The Canon Speedlite 430EX Flash includes an integrated diffusion panel that covers a 14mm lens (on a full-frame camera), the 420EX does not have this feature. Without the panel in place, both flashes cover a 24mm or greater focal length lens. Both flash heads zoom to cover a 24mm to 105mm focal length range. Of course a longer focal length lens can be used, but flash output will be wasted to the sides of the covered field of view. The Canon Speedlite 430EX Flash indicates the flash zoom setting on the LCD (instead of using a series of lights).
The Canon Speedlite 430EX Flash also features auto conversion of flash zoom coverage with compatible FOVCF digital SLRs. The flash coverage is adjusted to optimally cover the camera's sensor size. "This has the effect of eliminating light loss in peripheral areas and extending the effective flash range." [Canon] And, battery life can be extended.
When a compatible digital SLR's white balance mode is set to Auto White Balance (AWB) or Flash White Balance, color temperature information can be communicated with the Canon Speedlite 430EX Flash resulting in optimum white balance.
Six custom functions are built into the 430EX, adjusted using new parenthesis-shaped buttons and displayed on the rear LCD panel. These functions include ...
Auto Power Off Activation (On/Off)
Slave Unit's Power Off Time (60 Min, 10 Min)
Auto Zoom for Image Size (Enabled, Disabled)
AF-Assist Beam (Disabled/Enabled)
Modeling Flash(Enabled/Disabled)
LCD Panel Display When Shutter Button Pressed Halfway (Max Flash Range/Aperture)
A new 2-LED focus assist beam is compatible with all EOS AF systems up to 9-point AF (the 420EX supported 7 focus points).
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А аз щях да я "подарявям"За същите пари но 430ЕХ купена на 22-ри Май т.г. - даже се гавреха и за по-ниска цена!![[smilie10]](https://photo-forum.net/forum/smileys/smilie10.gif)
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