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Cobra Macrofalsh

Reviews Views Date of last review
1 2,195 Sat December 2, 2017
Recommended By Average Price Average User Rating
100% of reviewers $20.00 6.00
Cobra Macrofalsh

Cobra Macrofalsh
Cobra Macrofalsh

Basic 1990's thyristor ring flash unit, not dedicated, with one manual and one auto mode. Comes with adaptor rings for 49, 52 and 55mm filter threads. Has "On" and "Ready" indicators (but no exposure confirmation), and a test firing button. It connects with its own 2.5mm jack socket to a camera PC socket with a supplied lead. Also included is a hot-shoe to PC socket adaptor for cameras with no PC socket.

It appears to be identical to the Centron MR20, Vivitar 5000, and Starblitz 1000-Auto Macro Lite.

Uses two AA batteries.
Trigger voltage 4.5v
Guide Number 5 meters.
Weight 150g plus batteries
Dimensions 90 (the ring) x 150 x 32mm

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Veteran Member

Registered: September, 2017
Location: South Wales
Posts: 418
Review Date: December 2, 2017 I can recommend this item: Yes | Price: $20.00 | Rating: 6 

Pros: Very cheap and does the job
Cons: No "Off" switch, no exposure confirmation, low power

This is a basic, but for my purposes adequate, ring flash. Mine was used from ebay where there are plenty (along with the Centron, Vivitar, and Starblitz equivalents) at bargain prices. Ensure you get the adaptor rings and connecting lead; mine was missing the hot shoe adaptor but that is easily replaced.

It takes about 25 seconds to charge with NiMH batteries (should be quicker with Alkaline?). Oddly, there is an "On" button but no explicit means of turning it off other than removing the batteries. There is a "Test" button, but the lack of exposure confirmation makes it rather pointless; that would have mattered more in the film days but a digital test shot costs nothing. There is only one auto power level (at f5.6 at 100 ASA), and the one manual level is by a slider obscuring the sensor. The lack of other (reduced) power modes hardly matters as it is only GN 5 to start with.

I find I need to press the "On" button again to recharge it after every shot, but perhaps that is only a fault in my example. It is consequentlty rather slow to work with, but I do not mind as I mainly take technical pictures. It might be less satisfactory for eg small animal photography.

The battery door is a weakness; it takes the force of the battery contact springs and on mine the tiny catch tabs had broken off. There were signs of Duck Tape use by the previous owner, but a plastic cable tie used as a garter around the body holds the door shut and can be slid on and off readily. It is incomprehensible why so many flash units, even expensive Pentax and Mecablitx ones, suffer from weak battery doors; most childen's toys have better :-(
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