Tamron AF 18-250 Di II AF18-250mm F/3.5-6.3 Di-II LD Aspherical (IF) Macro Model A18
Lens Construction (Groups/Elements) 13/16
Angle of View
(Equivalent to APS-C size) Diagonal 75°33'-6°23'
Horizontal 65°36'-5°19'
Vertical 46°21'-3°19'
Diaphragm Blade Number 7
Minimum Aperture F/22
Minimum Focus Distance 17.7in.(0.45m)
Macro Magnification Ratio 1:3.5 (at f=250mm MFD 0.45m)
Filter Diameter ø62
Weight 430g (15.2oz)
Diameter x Length ø2.9 x 3.3in.
(ø74.4 x 84.3mm)
Accessory Flower-shaped Lens hood
Mount Canon - Available Nikon with Built-In Motor - Available
Pentax - Available
Sony - Available
*****************************************************************************
SIGMA 18-250mm F3.5-6.3 DC OS HSMLens Construction
18 Elements in 13 Groups
Angle of View 69.3 - 7.1 degrees (Sigma SD format)
Number of Diaphragm Blades 7 Blades
Minimum Aperture F22
Minimum Focusing Distance 45cm / 17.7 in.
Maximum Magnification 1:3.9
Filter Size Diameter 72mm
Lens Hood Petal Hood
Dimensions Diameter 79mm X Length 100mm
3.1 in. x 3.9 in.
Weight 610g / 21.5 oz.
Corresponding AF Mounts SIGMA (available),
CANON (available), NIKON HSM (available
***********************************************************************
ลุงตุ้น น้าแพะ น้าเข้ม น้าเบิ้ม และเซียนกล้องเทพทุกท่าน ช่วยให้ข้อคิดเห็นระหว่างเลนส์ 2 ตัวนี้ด้วยเถิด