Neewer® Large Size 2 Card Set 8" x 10" -White Balance / Exposure Card 18% Gray Card Set for Digital and Film Photography

These work well. Great for getting exposure right when you don't have an incident meter. Only thing that annoyed me was the ziploc bag they came i was so tight, I practically damaged them trying to get them out. Very tedious. These are relatively thick and do not flex which is really best for having consistent reflectivity.

Checks with a Minolta Flash Meter IV as being 18% grey for exposure. DOESN'T match the color of a Kodak grey card, which were slightly magenta biased. Checked with a Minolta Color Meter IIIa, there is between a 3 and 9 CC magenta difference between these and 5 Kodak grey cards I tested under various light sources,sunlight, tungsten, quartz-halogen, PhotoGenic StudioMaster strobes, "5000* K" LEDs, and various fluorescent lights, as well as HID "5000* K" light. I wish one side were the recommended 85% reflectance for white balance with digital/video cameras. The Minolta Color Meter says these are more "neutral" grey than Kodak grey cards and my eyeball agrees.

This is a set of two cards, one all white (both sides) and one all grey (both sides). What was wanted is a pair of identical cards with grey on one face and white on the back. This would enable keeping one covered as "reference" and carrying another on location for shooting.Still usable to some degree, but crazy to pay this much for a piece of ordinary white poster board and a piece of ordinary grey poster board. Description is misleading.

As a jewelry designer, I'm always looking for ways to improve my photos. These cards were an excellent addition to my setup. The colors of the pieces just jumps off the screen! Very happy with this purchase.

From tungsten-orange colour my image has turned into a balanced all-round neutral palette. Invaluable tool for cinematography, especially saves the day when colour accuracy is critical. Immensely with colour correction in post!

Needed some grey cards for white balance issues. These work perfectly. Set them on stage at the base of the lead singer's mike....

These cards are perfectly sturdy and feel well made. Couldn't be happier. I actually use them as reflecting cards and they've held up quite nice from me having to toss them (time is always against me when photographing long exposure shots).

These are exactly what I was looking for except I misunderstood the description-- the cards are grey on grey. Not grey on white and I thought.

Recomiendo totalmente estas tarjetas a cualquier persona que haga foto o video con estas 2 tarjetas puedes lograr una correcta exposición y balance de blancos. El chiste es siempre ponerlas justo donde quieres exponer y la con la luz que vas a usar. Yo la uso para prácticamente todos mis videos y si quieres ver alguno de ellos y los resultados puedes buscar Tecnocoon en YouT y ahi tambien te puedo ayudar si tienes alguna duda sobre como utilizarlas correctamente :)Espero que te haya sido util esta reseña. Saludos!

Nothing to say about the grey card. It seems to work just fine. The reason I give 2 stars out of 5 is the white card. The color of the white card is not accurate at all. There's a magenta hue in the card so it result on a green image when using the Neewer white card. On the photo the Neewer grey card is on the left, the Neewer white card is on the center and a white card (that is really accurate) is on the rigth.

Es regular realmente. PERO, considerando su precio, es bastante útil. He notado que el color no es 100% uniforme, pues me da ciertas variaciones mínimas al samplear un area de otra, pero insisto, es una tarjeta barata. Para resultados consistentes al 100% tienes que gastar varios miles en una solución de otros fabricantes. Yo uso esta de batalla para lo cotidiano y así no gastar innecesariamente mi color checker en trabajos sencillos, pues esto me da una aproximación bastante cercana y ya corrijo un poco a vista.

Me parece un producto muy útil para el balance de blancos, el material se siente de buena calidad, sin embargo no conozco otro producto similar con el cual comparar. La tarjeta gris igualmente se siente de buena calidad, tiene un lado mate, asumo que es el que se debe utilizar para el ajuste de exposición. No se si lo recomendaría para uso profesional, pero para alguien que inicia y con bajo presupuesto o es solo aficionado, estas herramientas ayudarán a obtener una adecuada exposición y balance de blancos. Estos factores pueden tener un gran impacto en el video o fotografía. Utilizo las "zebras" ajustadas a 50% para la exposición y he tenido excelentes resultados. Siempre grabo unos segundos con las tarjetas en la escena por si requiero hacer algún sutil ajuste en postproducción.

Not much to say about a grey card. They work.But I would have liked it if both cards would be grey on one side and white on the other side instead of one card being completely grey and the other card all white. Then I could use one card in each of mine photo bags instead of having both cards with me and needed to buy two sets.