Budget auto focus 50mm and 28mm crop sensor lenses

Wheatfield · 11-15-2022, 07:39 AM

Originally posted by Arisenfromash

Hi all,

I'm a great fan of older manual lenses, fantastic value vs. quality.
However, my 50mm rikenon lens is full frame giving some unwanted magnification on my crop sensor istd S.

Your 50mm lens isn't giving unwanted magnification because it's full frame, that is happening because it's a 50mm lens.

Arisenfromash · 12-05-2022, 12:46 PM

Just to be sure, is this the lauded lens? and is the equivalent of about 90 euro's with the box, manuals and 2 caps a good price? Thanks

**pres589** · 12-05-2022, 12:50 PM - **1 Like**

The price seems fair to me. Nicely sharp lens wide open. Images are maybe a bit "clinical". I own one but rarely use it.

**mikesbike** · 12-05-2022, 05:28 PM

Originally posted by Arisenfromash

Just to be sure, is this the lauded lens? and is the equivalent of about 90 euro's with the box, manuals and 2 caps a good price? Thanks

That lens is a very good performer and will provide the same image size as a 50mm lens on a FF DSLR or on a 35mm film camera. As long as you are satisfied with the aperture of this lens being f/2.4 as wide open. The only other factor is, this lens is designed specifically for APS-C size sensors and not suitable for use with a FF body, where there would likely be noticeable vignetting (darkness around the outer area of the image).

The FA 35mm f/2 is a FF design, and can thus be used with either type of camera.

Last edited by mikesbike; 12-06-2022 at 04:05 PM.

**pres589** · 12-05-2022, 06:08 PM

If I got results like those in the following link, I would have no problem using this lens on a full-frame camera;

SMC Pentax-DA 35mm F2.4 AL with Pentax K-1 (pics): Pentax SLR Talk Forum: Digital Photography Review

The only reason I haven't already done so is the lack of an aperture ring, so all of my full-frame cameras would be pointless to use with this lens. But on a K-1? Sure, why not.

**UncleVanya** · 12-06-2022, 11:18 AM

Originally posted by mikesbike

That lens is a very good performer and will provide the same image size as a 50mm lens on a FF DSLR or on a 35mm film camera. As long as you are satisfied with the aperture of this lens being f/2.4 is wide open. The only other factor is, this lens is designed specifically for APS-C size sensors and not suitable for use with a FF body, where there would likely be noticeable vignetting (darkness around the outer area of the image).

The FA 35mm f/2 is a FF design, and can thus be used with either type of camera.

The vignetting is very modest on my Sony A7RIII.

12-05-2022, 12:46 PM	#17
Arisenfromash New Member Join Date: Sep 2022 Photos: Albums Posts: 16 Original Poster	Just to be sure, is this the lauded lens? and is the equivalent of about 90 euro's with the box, manuals and 2 caps a good price? Thanks Attached Images

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Pentax K1 mark ii and crop sensor lenses	audreyanne	Pentax SLR Lens Discussion	16	12-13-2019 03:38 PM
Full frame (manual focus) lenses on crop sensor camera	WondringLisa	Pentax SLR Lens Discussion	8	12-06-2017 04:35 AM
K30 question about "crop sensor" and 1.5x crop	mellowyeahlow	Pentax K-30 & K-50	19	12-15-2014 03:14 AM
Do you shoot and crop in camera or shoot loose and crop in photoshop?	hockmasm	Pentax DSLR Discussion	23	05-02-2010 06:10 PM

11-15-2022, 07:39 AM	#16
Wheatfield Moderator Join Date: Apr 2008 Location: The wheatfields of Canada Posts: 15,991	Originally posted by Arisenfromash Hi all, I'm a great fan of older manual lenses, fantastic value vs. quality. However, my 50mm rikenon lens is full frame giving some unwanted magnification on my crop sensor istd S. Your 50mm lens isn't giving unwanted magnification because it's full frame, that is happening because it's a 50mm lens.

12-05-2022, 12:50 PM - 1 Like	#18
pres589 Site Supporter Join Date: Jan 2014 Location: Wichita, KS Photos: Albums Posts: 4,533	The price seems fair to me. Nicely sharp lens wide open. Images are maybe a bit "clinical". I own one but rarely use it.

12-05-2022, 05:28 PM	#19
mikesbike Site Supporter Join Date: Dec 2016 Location: Southeastern Michigan Posts: 4,564	Originally posted by Arisenfromash Just to be sure, is this the lauded lens? and is the equivalent of about 90 euro's with the box, manuals and 2 caps a good price? Thanks That lens is a very good performer and will provide the same image size as a 50mm lens on a FF DSLR or on a 35mm film camera. As long as you are satisfied with the aperture of this lens being f/2.4 as wide open. The only other factor is, this lens is designed specifically for APS-C size sensors and not suitable for use with a FF body, where there would likely be noticeable vignetting (darkness around the outer area of the image). The FA 35mm f/2 is a FF design, and can thus be used with either type of camera. Last edited by mikesbike; 12-06-2022 at 04:05 PM.

12-05-2022, 06:08 PM	#20
pres589 Site Supporter Join Date: Jan 2014 Location: Wichita, KS Photos: Albums Posts: 4,533	If I got results like those in the following link, I would have no problem using this lens on a full-frame camera; SMC Pentax-DA 35mm F2.4 AL with Pentax K-1 (pics): Pentax SLR Talk Forum: Digital Photography Review The only reason I haven't already done so is the lack of an aperture ring, so all of my full-frame cameras would be pointless to use with this lens. But on a K-1? Sure, why not.

12-06-2022, 11:18 AM	#21
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,468	Originally posted by mikesbike That lens is a very good performer and will provide the same image size as a 50mm lens on a FF DSLR or on a 35mm film camera. As long as you are satisfied with the aperture of this lens being f/2.4 is wide open. The only other factor is, this lens is designed specifically for APS-C size sensors and not suitable for use with a FF body, where there would likely be noticeable vignetting (darkness around the outer area of the image). The FA 35mm f/2 is a FF design, and can thus be used with either type of camera. The vignetting is very modest on my Sony A7RIII.