EF12 TUBE PDF

Buy EF12 vacuum tubes online, in stock and ready to ship! Find reviews, data sheets and specs to upgrade your tube amplifier. The EF12 is a pentode designed for RF or IF amplification at HF or MF. The wide metal tube envelope is 36 mm in diameter, and excluding the footless base . I found one blurry schematic for use with an EF12 tube, of which I have a a cleaner/readable copy of the EF12 schematic, validation that this.

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EF14M replacement tube

Sending along a photo with and without the extension tube. Thanks again for the links above.

I don’t have ed12 personal experience to have a genuine opinion either way. Light metering works well but autofocus needs to be turned off.

EF12 @ The Valve Museum

Enter new zip code to refresh estimated delivery time. MagnetoSound on January 05, You even did the badge??

Canon provides a usefel table with the extension tube that lists the change in minimum focal distance so that it can be used to pre-plan shots. I certainly cannot afford a real VF I’m just hoping to end up with a good-sounding microphone. In Stock Update Location close. Sredna Member Berlin, Germany Posts: This extension tube is solidly built and does not introduce any flex between the camera body and lens. I first tried out this macro extension tube on an EF-S ultra-wide zoom.

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Build quality is excellent and product has a very solid feel. There are other possible lens combinations but these two give me a shot at something less than macro.

Update Unrecognized Zip Code. I preferred the EF12 slightly.

See any errors on this page? For further details see delivery estimates in cart. Before my membership was approved, I lurked for a long time and I’ve read many wonderful threads here, using the search function, about DIY Ualike microphones. I’m a member tuube there as well. So I figured I’d go that route, as those two make nice mics.

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No flex noted between lens and camera body. Rated 5 out of 5 by Anonymous from Great product Extension tubes are a great alternative to costlier macro lenses and less expensive close-up lenses. Klaus runs a pretty tight ship, and is pretty passionate about having the discourse be ‘meaningful. The EF 12 II meets all my current macro demands. Voltages are different its true. They seem a bit overpriced for what they are – spacers between the lens and body.

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Rated 5 out of 5 by Anonymous from Great on the Canon lens I bought this and the EF 12 II for use in photographing butterflies and am extremely happy with the results.

Gus Member NJ Posts: I do wish that the tubes were slightly less expensive Canon or Kenko. May 03, Started by sismofyt The Lab.

All auto exposure features on the lens coupled to the extension tube work normally, and focusing is best done through varying your distance to the subject and fine focusing manually.

Although this type photography is tripod and manual focus recommended, I use the combination outside mostly off hand and automatic with no problem.

Other than that, the item is a very well designed and constructed Ttube accessory that works flawlessly. Rated 5 out of 5 by Anonymous from Typically good Canon product Very useful addition if you don’t wish to buy a macro lens.