DHP Digital has an offer running, giving you 15% off of their complete sIBL Collection HERE. Image quality looks great! Web site says the collection has 13 sets and each include: 8k (8000 x 4000 pixels) spherical JPEG background, 4k (4000 x 2000 pixels) spherical HDR for reflection, Low-res light-map (360 x 180 pixels) spherical blurred, Thumbnail JPG (128 x 128 pixels), sIBL document, Example test render, 360ยบ QTVR to help view the panorama. Sounds like a great package to get some awesome renders. Saw some really great reviews and the range of images looks like it could be used for a lot of different lighting situations. Promo code AAK66D0I for %15 off!