DSLR fun with 28mm: Club for any 28mm lens

edgedemon · 11-13-2014, 03:25 PM

If I have to add the crop factor for this to my DSLR, does that make a 28mm lens longer than my 35mm F2.4? Im asking as I was browsing for something slightly wider than my 35 and I was drawn to this thread...

Tsuken · 11-13-2014, 05:26 PM - **1 Like**

Originally posted by edgedemon

If I have to add the crop factor for this to my DSLR, does that make a 28mm lens longer than my 35mm F2.4? Im asking as I was browsing for something slightly wider than my 35 and I was drawn to this thread...

A 28mm lens on an APS-C sensor will have about the FoV of a 43mm lens on full-frame/film. So if you're meaning your 35mm lens on a film camera, yes, but if you mean 35mm lens on the same DSLR, it will have the FoV of about 54mm (for a Pentax crop factor of 1.54).

So the 35 mm lens remains longer

edgedemon · 11-13-2014, 11:22 PM

Thank you, was unsure whether the crop factor applied with DA lenses

Tsuken · 11-14-2014, 03:15 AM

Originally posted by edgedemon

Thank you, was unsure whether the crop factor applied with DA lenses

Yep- with any lens. I think a 28mm lens on APS-C gives a really nice FoV - I prefer it over my 35mm lens.

ChristianRock · 11-14-2014, 09:33 AM

I used to like 28mm better but now I'm divided. If there's people in the picture I prefer 35 now, if it's a scene I prefer 28. Can't go wrong with either, though!

**paulh** · 11-15-2014, 08:34 AM - **1 Like**

M28/3.5 (xposted)

Na Horuk · 11-17-2014, 02:22 PM

Originally posted by Tsuken

Yep- with any lens. I think a 28mm lens on APS-C gives a really nice FoV - I prefer it over my 35mm lens.

I was about to write the same thing! Its really a shame Pentax isn't producing a 28mm prime right now. Very good FoV for crop sensors and Pentax already has some nice designs for this focal length! AF, modern coatings, QS, WR and it would fly off the shelves!

This photo taken with the Pentax M 28mm f2.8

crooked old tree

Tsuken · 11-17-2014, 10:30 PM

Originally posted by Na Horuk

I was about to write the same thing! Its really a shame Pentax isn't producing a 28mm prime right now. Very good FoV for crop sensors and Pentax already has some nice designs for this focal length! AF, modern coatings, QS, WR and it would fly off the shelves!

This photo taken with the Pentax M 28mm f2.8

crooked old tree

Totally agree; I'd be a big fan of that.

I like the photo too

Na Horuk · 11-19-2014, 04:49 PM

I shot this photo as raw, but I didn't even PP it. Pentax M 28mm f2.8 - according to reviews, one of the worst 28mm Pentax lenses lol

**paulh** · 11-19-2014, 05:07 PM

Originally posted by Na Horuk

I shot this photo as raw, but I didn't even PP it. Pentax M 28mm f2.8 - according to reviews, one of the worst 28mm Pentax lenses lol

Looks nice to me! I'm thinking of picking one up, to go with my M28/3.5.

Dewman · 11-19-2014, 05:25 PM

Originally posted by Na Horuk

I shot this photo as raw, but I didn't even PP it. Pentax M 28mm f2.8 - according to reviews, one of the worst 28mm Pentax lenses lol

Have you noticed that most of the "reviewers" usually have less than 10 posts on the PF? That should mean something.... not sure what. I always take what they have to say with a very large grain of salt!

Dewman
SW Idaho, USA

**baro-nite** · 11-20-2014, 07:46 AM

The M28/2.8 is confusing because there are two versions with very different optics. But the first version is much more common, I think. I have a copy and have always liked the lens. It's on my list of best Pentax values, along with the M50/1.7.

ChristianRock · 11-20-2014, 12:08 PM

Rikenon 28 2.8 again...

Na Horuk · 11-20-2014, 12:50 PM

Originally posted by Dewman

Have you noticed that most of the "reviewers" usually have less than 10 posts on the PF? That should mean something.... not sure what. I always take what they have to say with a very large grain of salt!

And I'm too shy to post one

Originally posted by baro-nite

The M28/2.8 is confusing because there are two versions with very different optics. But the first version is much more common, I think. I have a copy and have always liked the lens. It's on my list of best Pentax values, along with the M50/1.7.

Yep, I have the inferior version, but it works quite well for me!

ChristianRock · 11-20-2014, 02:21 PM

Originally posted by Na Horuk

Yep, I have the inferior version, but it works quite well for me!

When I had both (first M version, and A version which is the same as late M) I thought the rendering of the first version was better (more vivid colors - A was too subdued). I should have kept that lens, but sold both after I got my Rikenon XR (I tend not to have duplicates - unless it's a 50!)

At least in my samples, the early M was definitely not inferior...

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11-13-2014, 03:25 PM	#196
edgedemon Veteran Member Join Date: Nov 2010 Location: London Photos: Albums Posts: 309	If I have to add the crop factor for this to my DSLR, does that make a 28mm lens longer than my 35mm F2.4? Im asking as I was browsing for something slightly wider than my 35 and I was drawn to this thread...

11-13-2014, 05:26 PM - 1 Like	#197
Tsuken Pentaxian Join Date: Oct 2013 Photos: Gallery Posts: 2,420	Originally posted by edgedemon If I have to add the crop factor for this to my DSLR, does that make a 28mm lens longer than my 35mm F2.4? Im asking as I was browsing for something slightly wider than my 35 and I was drawn to this thread... A 28mm lens on an APS-C sensor will have about the FoV of a 43mm lens on full-frame/film. So if you're meaning your 35mm lens on a film camera, yes, but if you mean 35mm lens on the same DSLR, it will have the FoV of about 54mm (for a Pentax crop factor of 1.54). So the 35 mm lens remains longer

11-13-2014, 11:22 PM	#198
edgedemon Veteran Member Join Date: Nov 2010 Location: London Photos: Albums Posts: 309	Thank you, was unsure whether the crop factor applied with DA lenses

11-14-2014, 03:15 AM	#199
Tsuken Pentaxian Join Date: Oct 2013 Photos: Gallery Posts: 2,420	Originally posted by edgedemon Thank you, was unsure whether the crop factor applied with DA lenses Yep- with any lens. I think a 28mm lens on APS-C gives a really nice FoV - I prefer it over my 35mm lens.

11-14-2014, 09:33 AM	#200
ChristianRock Pentaxian Join Date: Jul 2013 Location: People's Republic of America Photos: Gallery \| Albums Posts: 9,910	I used to like 28mm better but now I'm divided. If there's people in the picture I prefer 35 now, if it's a scene I prefer 28. Can't go wrong with either, though!

11-15-2014, 08:34 AM - 1 Like	#201
paulh Site Supporter Join Date: Sep 2010 Location: DFW Texas/Ventura County, CA Photos: Gallery \| Albums Posts: 33,301	M28/3.5 (xposted)

11-17-2014, 02:22 PM	#202
Na Horuk Veteran Member Join Date: Feb 2012 Location: Slovenia, probably Photos: Gallery \| Albums Posts: 11,186	Originally posted by Tsuken Yep- with any lens. I think a 28mm lens on APS-C gives a really nice FoV - I prefer it over my 35mm lens. I was about to write the same thing! Its really a shame Pentax isn't producing a 28mm prime right now. Very good FoV for crop sensors and Pentax already has some nice designs for this focal length! AF, modern coatings, QS, WR and it would fly off the shelves! This photo taken with the Pentax M 28mm f2.8 crooked old tree

11-17-2014, 10:30 PM	#203
Tsuken Pentaxian Join Date: Oct 2013 Photos: Gallery Posts: 2,420	Originally posted by Na Horuk I was about to write the same thing! Its really a shame Pentax isn't producing a 28mm prime right now. Very good FoV for crop sensors and Pentax already has some nice designs for this focal length! AF, modern coatings, QS, WR and it would fly off the shelves! This photo taken with the Pentax M 28mm f2.8 crooked old tree Totally agree; I'd be a big fan of that. I like the photo too

11-19-2014, 05:07 PM	#205
paulh Site Supporter Join Date: Sep 2010 Location: DFW Texas/Ventura County, CA Photos: Gallery \| Albums Posts: 33,301	Originally posted by Na Horuk I shot this photo as raw, but I didn't even PP it. Pentax M 28mm f2.8 - according to reviews, one of the worst 28mm Pentax lenses lol Looks nice to me! I'm thinking of picking one up, to go with my M28/3.5.

11-19-2014, 05:25 PM	#206
Dewman Veteran Member Join Date: May 2012 Location: Idaho Posts: 5,492	Originally posted by Na Horuk I shot this photo as raw, but I didn't even PP it. Pentax M 28mm f2.8 - according to reviews, one of the worst 28mm Pentax lenses lol Have you noticed that most of the "reviewers" usually have less than 10 posts on the PF? That should mean something.... not sure what. I always take what they have to say with a very large grain of salt! Dewman SW Idaho, USA

11-20-2014, 07:46 AM	#207
baro-nite Loyal Site Supporter Join Date: Aug 2011 Location: North Carolina, USA Photos: Gallery \| Albums Posts: 5,295	The M28/2.8 is confusing because there are two versions with very different optics. But the first version is much more common, I think. I have a copy and have always liked the lens. It's on my list of best Pentax values, along with the M50/1.7.

11-20-2014, 12:08 PM	#208
ChristianRock Pentaxian Join Date: Jul 2013 Location: People's Republic of America Photos: Gallery \| Albums Posts: 9,910	Rikenon 28 2.8 again...

11-20-2014, 12:50 PM	#209
Na Horuk Veteran Member Join Date: Feb 2012 Location: Slovenia, probably Photos: Gallery \| Albums Posts: 11,186	Originally posted by Dewman Have you noticed that most of the "reviewers" usually have less than 10 posts on the PF? That should mean something.... not sure what. I always take what they have to say with a very large grain of salt! And I'm too shy to post one Originally posted by baro-nite The M28/2.8 is confusing because there are two versions with very different optics. But the first version is much more common, I think. I have a copy and have always liked the lens. It's on my list of best Pentax values, along with the M50/1.7. Yep, I have the inferior version, but it works quite well for me!

11-20-2014, 02:21 PM	#210
ChristianRock Pentaxian Join Date: Jul 2013 Location: People's Republic of America Photos: Gallery \| Albums Posts: 9,910	Originally posted by Na Horuk Yep, I have the inferior version, but it works quite well for me! When I had both (first M version, and A version which is the same as late M) I thought the rendering of the first version was better (more vivid colors - A was too subdued). I should have kept that lens, but sold both after I got my Rikenon XR (I tend not to have duplicates - unless it's a 50!) At least in my samples, the early M was definitely not inferior...