new ASI 130 mm with ST4 ?

hello,

i have a ASI120mm , it work very fine,

i just have a new LUNT LS35T, but the field of the ASI 120 mm isa little to small

i looking for the ASI 130mm and i see a new model of 130mm with ST4 !

http://www.aliexpress.com/store/product/ZWO-Astronomy-Camera-ASI130MM-Gold/311206_521403546.html

before , is wasn't an ST4 ?

yes, its new ASI130MM with ST4 guider port

old one doesn't have it.

well thank you ;)

Is the ASI 130mm with IR/UV filter built or can we screw un filter to inside ?

where can we the 2.1 mm fisheye Buy ?