For NTA members' personal use:

Full-size versions of these photos (4 times as large) for personal use can be purchased at $1 per photo, or $10 to get all the full-size event photos.

For non-NTA members' personal use:

Full-size versions of these photos (4 times as large) for personal use can be purchased at $5 per photo, or $20 to get all the full-size event photos.

For commercial use:

Full-size versions of these photos can be licensed for non-exclusive commercial use, at $25 per photo.

Payment can be made via Paypal