PENTAX Q 04 TOY WIDE

Review and photo examples of the Pentax Q 03 FISH EYE lens.

Gallery

The example photos were taken with a Pentax Q10 and Q7.

Review

The 04 Toy Wide Lens for Pentax Q has a focal length of 6.3mm, and when converted to a 35mm equivalent focal length, the Q and Q10 are 35mm, and the Q7 and Q-S1 are 33mm wide-angle lenses.

The values calculated from the sensor size for the Q7 and Q-S1 are different from the 35mm equivalent values, but this lens was released during the Q era and the image circle cannot cover the 1/1.7 sensor, so the camera crops it to a usable range. The raw images generated by the Q10 are 12 megapixels at a resolution of 4000×3000, but the raw images generated by the Q7 are cropped to a resolution of 3629×2722, about 10% smaller. However, the JPG images of the Q7 are saved at a resolution of 4000×3000, so it can be confirmed that the resolution is supplemented by image processing within the camera.

The unique lens was released to supplement the poor lens lineup, and is designed to be cheap. This lens is no exception, with a simple construction, plastic mount, fixed F7.1 aperture, and no mechanical shutter, but the lens configuration is three groups and four elements, so it seems to be an advanced version of a triplet with a Tessar configuration.

The problem with this lens is that, like the other three unique lenses, the focus positions are Near and Far, and Far is over-inflated, not infinity.

If you think Far is fine for landscape photography, shooting at the Far position will result in a blurred photo.

It is not narrowed down enough to be called F7.1 pan focus, so you have to focus on the intended subject. It is a lens with a slightly contradictory concept that requires precise focusing, despite its loose lens concept.

When the focus is properly adjusted, it produces a reasonably sharp image.

This lens also does not process the image inside the camera when shooting JPG, and both Raw and JPG images are recorded without correction.

The Pentax Q series does not have a mechanical shutter on the camera itself, so this lens and other unique lens series lenses use the sensor’s shutter to take pictures.

Specification

Items	03	04	05	07
Focal length(mm)	3.2	6.3	18	11.5
Q10 35mm equivalent focal length	18	35	99	63
Q7 35mm equivalent focal length	16.5(15) *2	33(29) *2	94(83) *2	53(53)
Max aperture	5.6	7.1	8	9
Leaf blade	–	–	–	–
Lens Construction	6elements in 5 groups	4elements in 3 groups	3elements in 3 groups	1elements in 1 groups
Min distance(m)	0.09	0.07	0.27	0.3
Lens length(mm)	30.5	25	19.5	6.9
Max diameter(mm)	40.6	40.6	40.6	40.8
Filter Size(mm)	–	–	–	–
Weight(g)	29	21	18	8
Release date	August 31, 2011	←	←	July 2013
Price(Yen)	6,560-	4,620-	4,490-	2,220-

*2: () indicates official value, () indicates value multiplied by sensor conversion factor 4.6

Reference links

Update history

2024.07.03

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