SKU: P-FLAT68III

FLAT 68III

Name: FLAT 68III
Brand: William Optics
SKU: P-FLAT68III
Price: 656.00 USD
Availability: InStock

$656.00 USD

⛟ Free Shipping

Back Focus Adjusting Instruction

Spec and compatibility

Lens Type: 2 Groups 2 Elements

Length: 64.5 mm

Telescope Thread: M92 x 1 x 6.5 mm

T-mount Thread: M48 x 0.75 x 4 mm

T-mount Supported: Canon EF, RF; Nikon F, Z; Sony E; Pentax K; MFT (M4/3); FUJI X

Camera Format: > Full Frame

Weight: 718.2 g / 1583.36 lbs

▶︎ Compatibility ◀︎

Gran Turismo 81 + Back Adapter

Back Focus: 57.0mm

Adjust Distance: 2.0mm

Image Circle: ∅44.4mm

Gran Turismo 102

Back Focus: 68.6mm

Adjust Distance: 13.6mm

Image Circle: ∅44.4mm

Gran Turismo 153

Back Focus: 57.8mm

Adjust Distance: 2.8mm

Image Circle: ∅44.4mm

Zenithstar 126

Back Focus: 58.0mm

Adjust Distance: 3.0mm

Image Circle: ∅43.4mm

Fluorostar 91 + Back Adapter

Back Focus: 60.0mm

Adjust Distance: 5.0mm

Image Circle: ∅43.4mm

Fluorostar 120

Back Focus: 65.7mm

Adjust Distance: 10.7mm

Image Circle: ∅44.4mm

Fluorostar 132

Back Focus: 62.7mm

Adjust Distance: 7.7mm

Image Circle: ∅44.4mm

Fluorostar 156

Back Focus: 57.6mm

Adjust Distance: 2.6mm

Image Circle: ∅44.4mm

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FLAT 68III

$656.00 USD

Flattener compatibility table

	FLAT 61A 1.0x	FLAT 73A 1.0x	FLAT 73R 0.8x	FLAT GT 1.0x	FLAT 6AIII 0.8x	FLAT 68III 1.0x	FLAT 7A 0.8x	FLAT 8 0.72x	Ultra 91 0.79x	Ultra 132 0.79x	Ultra 156 0.79x	Dr. Flat 0.8x
GS-61	★
Z-61	★
Z-73		★	★
Z-81					★
Z-126						★	★
GT-71				★	★
GT-81				★	★
GT-81 WIFD				Adapter	★	Adapter
GT-102						★	★	★
GT-153						★	★	★
FLT-91					Adapter	Adapter			★
FLT-120						★	Adapter
FLT-132						★	★	★		★
FLT-156						★	★	★			★
RC Series												★
Pleiades Series	No Flattener Required
Cat Series	No Flattener Required