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Mamiya/Sekor 400mm F6.3

Reviews	Views	Date of last review
2	16,497	Sun May 23, 2010

Recommended By	Average Price	Average User Rating
100% of reviewers	$40.00	6.50

supersize

Description:	M42 mount. Filter thread - 72 mm. Preset aperture f/6.3 - f/32 Weight 910 grams (970 grams with the screw-in hood and the caps) Minimum focusing distance - 30 feet (9 meters) I believe it has very simple design with only 3 elements in 3 groups. Length is 13 to 14 inches (33 to 35.5 cm) without hood (hood is little more than 1 inch). All metal with tripod collar.
Mount Type:	M42 Screwmount
Price History:

Author:

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Nomad

Veteran Member

Registered: December, 2009

Location: Maine

Posts: 408

Review Date: May 23, 2010

Recommended | Price: $30.00 | Rating: 7

Pros:	Price - Weight
Cons:	Speed - Lack of coating

This lens actually is decent as a first long tele or one that will be used for the occasional long reach situation.
With perfect conditions it will take a decent CA/PF free image but it is not a * or limited lens but then again it is 1/50th of the price.

bbobby

New Member

Registered: February, 2010

Location: ChicagoLand

Posts: 7

Review Date: May 16, 2010

Recommended | Price: $50.00 | Rating: 6

Pros:	low price, not too heavy, good build quality
Cons:	it is slow - only f/6.3, purple fringe

Good lens overall, I like it, especially for the price. Good first telephoto for somebody who never had 400 mm or longer lens. Decent image quality.
Some guy in another forum wrote

Quote:

No significant color fringing

but my first tests shows different result.

100% crop

The last image is made with extension tubes (all 3 are made with K-x). The lamp ornament is about 3-4 meters away (50% crop).
I will soon go outside with my canon 7d to put the lens thru more serious test.

Third-Party Lens Reviews

Mamiya/Sekor 400mm F6.3