ProOptic Auto Extension Tube Set for Sony Alpha & Maxxum
What's Included With This Item:
- 3 Extension Tubes: 31mm, 21mm & 13mm.
Contains three tubes of different length (31mm,21mm & 13mm) which can be combined in seven ways to obtain various magnification. Perfect coupling with TTL metering and AE mechanisms. Full auto focusing with Minolta Maxxum/Sony Cameras