I second the suggestion of using a Sinar bellows as a focusing aid. The bellows is much deeper than the type of focusing hood on the Toyo Field so it is much better for blocking light from hitting the ground glass, especially the wide angle bellows. I have a Sinar and a Toyo Field and I can tell you from experience that the hood on the Toyo is almost useless for viewing in sunlight. I use it folded to protect the ground glass but always remove it for shooting and use a focusing cloth. The bellows on the Sinar does a much better job of darkening the ground glass even used alone without the binocular focusing plate.