Will this fit the new k1 and with auto focus?

It will indeed fit and autofocus, however, this is a crop fit APS-C lens and the K1 is a full frame body, you would have put the K1 into crop mode limiting it to 15 megapixels. This lens won't cover full frame.

“Equivalent to 53.5mm in 35mm format” What does this mean in the description?

Any cropped sensor camera has a smaller sensor than a full frame or 35mm camera. Thus any lens used on a cropped sensor will produce an image that appears to be 1.4 - 1.6 times smaller compared to the full frame version. If we say that a Full Frame is 35mm then a cropped sensor would be between 23 and 26mm. If you draw those sizes on a piece of paper and overlay them the difference becomes immediately apparent.

I have a Kr camera and just brought this lens, but the exposure compensation dial does not work with this lens. Is this normal or is the lens faulty?

the camera I used the lens on is a Pentax K-3 II and my lens works. looking at the back of the lens there is a black tag when you slide his tag the aperture in the lens should open My camera uses this tag to alter the aperture. hope this is helpful

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smc PENTAX-DA 35mmF2.4AL Standard lens Focal length 53.5mm (Equivalent to 35mm format) High delineation performance F2.4 high brighness Compact Lightweight design Aspherical lens Super Protect coating

Product ID: 65547286

Details

Brand
Pentax
Camera lens description
35 millimetres
Compatible mountings
Pentax K
Focal length description
35mm
Focus type
Auto/Manual
Lens design
Fixed

💡Bright f/2.4 aperture

📏35mm fixed focal length

⚖️Ultra-light 124g compact design

AED 978

Duties & taxes included

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Description

📸 Capture brilliance everywhere with the sleek Pentax 35mm f/2.4 — your new creative edge!

LOW LIGHT HERO - Bright f/2.4 aperture lets you shoot crisp images even in dim environments—no flash needed.
CRYSTAL CLEAR FOCUS - Hybrid aspherical lenses deliver edge-to-edge sharpness and high contrast for pro-level shots.
FEATHERWEIGHT POWER - Weighing just 124g and only 45mm long, this lens is your perfect on-the-go creative companion.
SEAMLESS STABILIZATION - Built-in camera shake reduction compatibility ensures blur-free images every time.
SMUDGE SPLASH RESISTANT - Super Protect coating repels dust, water, and grease so your lens stays pristine in any setting.

The Pentax smc DA 35mm f/2.4 AL is a lightweight, compact standard prime lens featuring a bright f/2.4 aperture and hybrid aspherical optics for sharp, high-contrast images. Designed for Pentax K-mount cameras with in-body shake reduction, it offers superior image stabilization, a durable Super Protect coating, and a versatile 35mm focal length ideal for portraits, landscapes, and everyday shooting.

Specifications

ASIN	B0042RTQPC
Best Sellers Rank	95,402 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 1,076 in Camera Lenses
Box Contents	SMC Pentax-da 35mmF2.4AL Standard Lens Focal Length 53.5mm (Equivalent To 35mm Format) High Delineation Performance F2.4 High Brightness Compact Lightweight Design Aspherical Lens Super Protect Coating
Brand Name	Pentax
Camera Lens	35 millimetres
Colour	Black
Compatible Camera Models	[Pentax KAF3 compatible models]
Compatible Devices	K-AF
Compatible Mountings	Pentax K
Continuous Shooting Speed	5.00
Customer Reviews	4.5 4.5 out of 5 stars (751)
Exposure Control Type	Automatic
Fixed Focal Length	35 Millimetres
Focus Type	Auto/Manual
Global Trade Identification Number	00027075114623, 00531479668458, 04961333114627
Has Self-Timer	No
Image Stabilization Type	Digital
Item Part Number	21987
Item Type Name	Pentax 35mm 2.4
Item Weight	124 Grams
Lens Coating Description	Super Protect Coating
Lens Design	Fixed
Lens Mount	Pentax K
Lens Type	Standard
Manufacturer	Pentax
Manufacturer Part Number	21987
Maximum Aperture	2.4 f
Maximum Focal Length	35
Maximum Shutter Speed	1/8000 seconds
Media Type	Product image
Minimum Aperture	22
Minimum Focal Length	35
Model Name	21987
Model Number	21987
Model Series	PENTAL-Da
Number of Diaphragm Blades	7
Number of Items	1
Number of Packs	1
Photo Filter Size	49 Millimeters
Real Angle Of View	44 Degrees
Screen Size	3 Inches
Shooting Modes	landscape, portrait, automatic, program
UPC	027075114623
Unit Count	1.0 count
Viewfinder Type	Optical viewfinder
Water Resistance Level	Not Water Resistant
Zoom Ratio	1:1

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