My goal is to reduce my camera gear in size and weigth as much as I can - w/o compromising on quality. The RX1R MkIII is a perfect step in that direction. It is 35/50/70 lens with a camera attached to it.
For short to medium tele I am currently using my a7cR with the Sigma 90f2.8. Also a great combo, giving me 90/135/180 easily with very high quality. But the a7cR is larger than the RX1R MkIII. So I wounder if Sony will (in another surprise move) ever launch an RX2R with a short tele like the Sigma 90f2.8 attached? It would also be a rather small combo.
And finally (though I don't think it to be very likely): How about an RX3R with a small UAW lens like the Voigtländer 15mm? That could give a 15/23/28 combination. Three very small cameras with lenses to cover all my needs.
Nielk Mike wrote:
My goal is to reduce my camera gear in size and weigth as much as I can - w/o compromising on quality. The RX1R MkIII is a perfect step in that direction. It is 35/50/70 lens with a camera attached to it.
For short to medium tele I am currently using my a7cR with the Sigma 90f2.8. Also a great combo, giving me 90/135/180 easily with very high quality. But the a7cR is larger than the RX1R MkIII. So I wounder if Sony will (in another surprise move) ever launch an RX2R with a short tele like the Sigma 90f2.8 attached? It would also be a rather small combo.
And finally (though I don't think it to be very likely): How about an RX3R with a small UAW lens like the Voigtländer 15mm? That could give a 15/23/28 combination. Three very small cameras with lenses to cover all my needs....Show more →
I don't see how this plan makes sense. Unless you absolutely hate changing lens, the kit would be a lot smaller with one interchangeable lens camera (ILC) and three lenses. A 15mm, a 35mm, and a 90mm. I think that is why we have ILCs like your A7Cr. As a single carry camera I think a 90mm RX2r would be particularly awkward and many people would often want to shoot wider than 90mm and the camera wouldn't be able to do it.
Said another way there is simply no way that three cameras with a fixed lens attached to each can be a smaller package than one small camera with three interchangeable lenses. So you won't be reducing the size and weight of your camera gear with this approach and it would be much more expensive. I think the RX1r series camera does reduce the size of the gear, however, because with just one camera and one lens actually reduces the size compared to a ILC, but that comes with reduction in the focal lengths it covers. I think Sony picked the 35-70 ish range because that is the range people most typically use or close to it. Leica obviously thought 28 to about 60 is a better range, and then made a separate camera for people who prefer a longer 43 to about 85. I don't think anybody has ever made a camera only covering the 90 to about 180 range that you are proposing.
Steve Spencer wrote:
I don't see how this plan makes sense. Unless you absolutely hate changing lens, the kit would be a lot smaller with one interchangeable lens camera (ILC) and three lenses. A 15mm, a 35mm, and a 90mm. I think that is why we have ILCs like your A7Cr. As a single carry camera I think a 90mm RX2r would be particularly awkward and many people would often want to shoot wider than 90mm and the camera wouldn't be able to do it.
Said another way there is simply no way that three cameras with a fixed lens attached to each can be a smaller package than one small camera with three interchangeable lenses. So you won't be reducing the size and weight of your camera gear with this approach and it would be much more expensive. I think the RX1r series camera does reduce the size of the gear, however, because with just one camera and one lens actually reduces the size compared to a ILC, but that comes with reduction in the focal lengths it covers. I think Sony picked the 35-70 ish range because that is the range people most typically use or close to it. Leica obviously thought 28 to about 60 is a better range, and then made a separate camera for people who prefer a longer 43 to about 85. I don't think anybody has ever made a camera covering the 90 to about 180 range that you are proposing....Show more →
(1) Yes, I hate changing lenses. It is very unpractical in the streets, subways, and in bad weather. And it takes time. So opportunities missed.
(2) Yes, nobody has yet made a 90mm fixed lens camera. But there is always a first time :-)
(3) I was using the a7cR with the Voigtländer 21, the Sony 50f2.5 and the Sigma 90f2.8. Or the Fuji X-Pro3 with the 23/35/50 f2 Fujinons. All good, but slowing me down.
(4) Because of speed I am currently carrying the RX1R MkIII and the a7cR with the Sigma 90f2.8. It works, but the a7cR is bigger than the RX1R.
"w/o compromising on quality. The RX1R MkIII is a perfect step in that direction. It is 35/50/70 lens with a camera attached to it."
Using a 35mm lens and cropping to FOV of a 70mm lens is compromising on quality.
It results in 45 megapixels of the sensor's 60 mp being discarded .
The compromise might be acceptable to you, and that's fine.
But it is a compromise.
If it wasn't, why couldn't you just consider the RX1RIII a 35/50/70/90 ?
Choderboy wrote:
"w/o compromising on quality. The RX1R MkIII is a perfect step in that direction. It is 35/50/70 lens with a camera attached to it."
Using a 35mm lens and cropping to FOV of a 70mm lens is compromising on quality.
It results in 45 megapixels of the sensor's 60 mp being discarded .
The compromise might be acceptable to you, and that's fine.
But it is a compromise.
If it wasn't, why couldn't you just consider the RX1RIII a 35/50/70/90 ?
90mm? Well, I do. I can crop 3x and still get a 4K image to show on my screens and print to poster size. There is no obligation to use the full 60MP all the time, you know :-)
Nielk Mike wrote:
Many can hardly wait?? You seem to have no experience with the RX1R MkIII. It is my favorite camera and image quality, speed, handling is amazing.
Well, for this statement of mine, you don't need any personal experience (because then it would be an individual opinion like yours); you just need to read various reviews from buyers published online. But since you prefer to start your own threads that focus exclusively on positive things, you're obviously missing out.;-)
Nielk Mike wrote:
90mm? Well, I do. I can crop 3x and still get a 4K image to show on my screens and print to poster size. There is no obligation to use the full 60MP all the time, you know :-)
Well then everything is fine.
Aug 23, 2025 at 07:14 AM
Steve Spencer Offline • • • • • • • Upload & Sell: On
Nielk Mike wrote:
(1) Yes, I hate changing lenses. It is very unpractical in the streets, subways, and in bad weather. And it takes time. So opportunities missed.
(2) Yes, nobody has yet made a 90mm fixed lens camera. But there is always a first time :-)
(3) I was using the a7cR with the Voigtländer 21, the Sony 50f2.5 and the Sigma 90f2.8. Or the Fuji X-Pro3 with the 23/35/50 f2 Fujinons. All good, but slowing me down.
(4) Because of speed I am currently carrying the RX1R MkIII and the a7cR with the Sigma 90f2.8. It works, but the a7cR is bigger than the RX1R.
The three camera solution you suggest would cost about $15,000 and would weigh about 1,500 grams.
A Sony A7rC with a Sony 16 f/1.8 G, a Sigma 35 f/2, and the Sigma 90 f/2.8 would weigh 1,434g and cost $5,274 new at B & H.
So you would be willing to carry a bigger heavier kit and pay three times as much just to avoid lens changes? I don't think many people would, and I suspect the market for people who would want such a kit is tiny. I suspect Sony thinks the same thing and that is why they are unlikely to make what you are proposing.
Nielk Mike wrote:
90mm? Well, I do. I can crop 3x and still get a 4K image to show on my screens and print to poster size. There is no obligation to use the full 60MP all the time, you know :-)
I do know. Which is why I asked. Maybe you just answered your own question.
Sony don't offer an RX1RIII 90mm as cropping the 35mm achieves that. Simples.
Aug 23, 2025 at 07:19 AM
Steve Spencer Offline • • • • • • • Upload & Sell: On
Nielk Mike wrote:
90mm? Well, I do. I can crop 3x and still get a 4K image to show on my screens and print to poster size. There is no obligation to use the full 60MP all the time, you know :-)
You do realize that when you use a 3X crop that turns your 36 X 24 mm sensor into a 12 X 8 mm sensor. You go from an area with 864mm squared to 96mm squared. An iPhone sensor is 9.6 X 7.2 mm with 69mm squared. If you crop to 3X you have almost turned your FF sensor into an iPhone sensor. If you are ok with that keep in mind that modern cell phones typically have 3 lenses and add zero size and weight to what people typically carry. That might be enough for you.
Nielk Mike wrote:
(1) Yes, I hate changing lenses. It is very unpractical in the streets, subways, and in bad weather. And it takes time. So opportunities missed.
(2) Yes, nobody has yet made a 90mm fixed lens camera. But there is always a first time :-)
(3) I was using the a7cR with the Voigtländer 21, the Sony 50f2.5 and the Sigma 90f2.8. Or the Fuji X-Pro3 with the 23/35/50 f2 Fujinons. All good, but slowing me down.
(4) Because of speed I am currently carrying the RX1R MkIII and the a7cR with the Sigma 90f2.8. It works, but the a7cR is bigger than the RX1R.
Steve Spencer wrote:
You must hate changing lenses a lot.
The three camera solution you suggest would cost about $15,000 and would weigh about 1,500 grams.
A Sony A7rC with a Sony 16 f/1.8 G, a Sigma 35 f/2, and the Sigma 90 f/2.8 would weigh 1,434g and cost $5,274 new at B & H.
So you would be willing to carry a bigger heavier kit and pay three times as much just to avoid lens changes? I don't think many people would, and I suspect the market for people who would want such a kit is tiny. I suspect Sony thinks the same thing and that is why they are unlikely to make what you are proposing....Show more →
We will see :-) I know people who own and use both Q3s.
Steve Spencer wrote:
You do realize that when you use a 3X crop that turns your 36 X 24 mm sensor into a 12 X 8 mm sensor. You go from an area with 864mm squared to 96mm squared. An iPhone sensor is 9.6 X 7.2 mm with 69mm squared. If you crop to 3X you have almost turned your FF sensor into an iPhone sensor. If you are ok with that keep in mind that modern cell phones typically have 3 lenses and add zero size and weight to what people typically carry. That might be enough for you.
3x crop from the RX1R MkIII looks still better than an image from the Google pixel 9 Pro. Using 3y crop is a stretch, no question.
Choderboy wrote:
I do know. Which is why I asked. Maybe you just answered your own question.
Sony don't offer an RX1RIII 90mm as cropping the 35mm achieves that. Simples.
It can achieve 90mm (barely) - but not 135 and 180
Aug 23, 2025 at 07:49 AM
Steve Spencer Offline • • • • • • • Upload & Sell: On
Nielk Mike wrote:
3x crop from the RX1R MkIII looks still better than an image from the Google pixel 9 Pro. Using 3y crop is a stretch, no question.
The google Pixel 9 Pro is a little smaller at 7.7mm X 6.0mm. To put things in perspective the crop from a 3X cropped FF sensor to an iPhone sensor is a 1.2X crop, and the crop from an iPhone sensor to the Google Pixel 9 Pro sensor is also a 1.2X crop. The iPhone sensor is right in the middle. The crop from a 3X cropped FF sensor to the Google Pixel 9 Pro sensor is about 1.5X or about the same amount as FF to APS-C. I would expect that you could see that if you look carefully but a 1.2X crop is a lot harder to see. For example cropping from a 3 X 2 aspect ratio to 4 X 3 is about a 1.1X crop and I typically don't notice that at all. Of course all of this assumes using the same lens or similar lenses. When we compare the RX1r to a cell phone the lenses are very different, so that no doubt plays a role as well. Still, although I appreciate the ability to crop and do it often especially for travel photography, for me personally a 3X crop of a FF sensor sacrifices too much, but of course YMMV.
?? You seem to have no experience with the RX1R MkIII. It is my favorite camera and image quality, speed, handling is amazing.