How can I find all products without images in Magento?

Question

I have some thousand products and want to find all products without an image. I tried to search for (no image) in the admin products grid, but no result. How can I make an S

Answer 1

I tried all but this works for me when flat catalog is enable

$products = Mage::getModel('catalog/product')
    ->getCollection()
    ->addAttributeToSelect('*')
    ->addAttributeToFilter(
        array(
            array(
                'attribute' => 'image',
                'null' => '1'
            ),
            array(
                'attribute' => 'small_image',
                'null' => '1'
            ),
            array(
                'attribute' => 'thumbnail',
                'null' => '1'
            ),
            array(
                'attribute' => 'image',
                'nlike' => '%/%/%'
            ),
            array(
                'attribute' => 'small_image',
                'nlike' => '%/%/%'
            ),
            array(
                'attribute' => 'thumbnail',
                'nlike' => '%/%/%'
            )
        ),
        null,
        'left'
    );