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so much for using wide legacy lenses on x-pro1

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dimitrir

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http://diglloyd.com/blog/2012/20120313_2-FujiXPro1-sensor.html
Member said:
But wait— there is a fly in my soup. I have since learned that the Fuji X-Pro1 has a 2.5mm thick sensor cover glass (same as the Sony NEX-7). My testing of wide angle rangefinder lenses on the Sony NEX-7 shows that ray angle issues with sensor cover glass result in color shading and degraded sharpness off-center (badly degraded with some lenses, tolerable with others).
Click to expand...
Member said:
In short, wide angle Leica M and Zeiss ZM lenses are unlikely to perform to their potential on the Fuji X-Pro1. 35mm and longer focal lengths should be good, but 28mm and wider are likely to offer sub-optimal performance, depending on the particular lens (and ray angle is not the sole determinant).
Click to expand...
 
Its very odd you keep reading about the X Pro, even though you've clearly made up your mind about the camera and that you prefer other brands....

Stranger still is why you feel the need to post such stuff here.

Hopefully the $0.05 per message your paid by your handlers to bash it and promote the competition is worth the effort
 
Except... someone's already tested it, on an actual camera, and says it's not the case:
http://forums.dpreview.com/forums/read.asp?forum=1020&message=40884533

You uncritically latch on to every crumb of potentially negative info, and post it here, even if it means distorting the truth, or saying stuff that's fairly easily dis-proven. If you're going to troll constantly, either be more clever about it, or at least more entertaining.
dimitrir said:
dimitrir said:
But wait— there is a fly in my soup. I have since learned that the Fuji X-Pro1 has a 2.5mm thick sensor cover glass (same as the Sony NEX-7). My testing of wide angle rangefinder lenses on the Sony NEX-7 shows that ray angle issues with sensor cover glass result in color shading and degraded sharpness off-center (badly degraded with some lenses, tolerable with others).
Click to expand...
dimitrir said:
In short, wide angle Leica M and Zeiss ZM lenses are unlikely to perform to their potential on the Fuji X-Pro1. 35mm and longer focal lengths should be good, but 28mm and wider are likely to offer sub-optimal performance, depending on the particular lens (and ray angle is not the sole determinant).
Click to expand...
Click to expand...
 
See recent reports at photozone for more on sensorvwoes on the nex7. Pretty clear the issue lloyd noticed is related to their findings and is specific to the nex.
 
dimitrir said:
dimitrir said:
But wait— there is a fly in my soup. I have since learned that the Fuji X-Pro1 has a 2.5mm thick sensor cover glass (same as the Sony NEX-7). My testing of wide angle rangefinder lenses on the Sony NEX-7 shows that ray angle issues with sensor cover glass result in color shading and degraded sharpness off-center (badly degraded with some lenses, tolerable with others).
Click to expand...
dimitrir said:
In short, wide angle Leica M and Zeiss ZM lenses are unlikely to perform to their potential on the Fuji X-Pro1. 35mm and longer focal lengths should be good, but 28mm and wider are likely to offer sub-optimal performance, depending on the particular lens (and ray angle is not the sole determinant).
Click to expand...
Click to expand...
How would the XP1 sensor have 2.5mm low pass filter as on the NEX-7????? There's no low-pass filter on the XP1 and the RGB configuration is totally different!

I think from the low-angle-rays performance point of view, the XP1 would perform similar to the Nex-5N, so down to the VC 12mm wide angle lenses would be used with small or no compromises. BTW, the original 18/2 has nothing to do with retrofocus design, any color shifting in the corners??

--
BobYIL
 
You showed us sample photos, that's real data that we can interpet for ourselves, thanks. Am relieved to see that the performance with the Voigtlander 15/4.5 is so good. For example, am not seeing significant color shift in corners.

Of course it is ridiculous for digilloyd or whoever to think that there's a tenth of an inch of glass over a sensor that a company is selling as having above-average sensor performance. And further, the sensor is advertised as having less of a sensor cover than most other cameras. Anyone having such a silly thought about a huge layer of glass over the Fuji sensor should not bother posting it without a photo they've taken of the sensor out in the open, taken from the side, showing the hugely visible (2.5mm thick) "cover glass." That's about as likely as Zeiss selling a new Nikon mount full-frame Makro-Planar lens that is filled with chicken soup.
 
Interesting analogy with chicken soup and all, but you have no idea what you are talking about, right ?

Lack of low pass filter is one thing and the need for any digital sensor to have an IR filter in front of it is another. Leica M8 is a perfect example of what happens when it is too thin.

And yes, these CV15 images do show very significant sharpness degradation off center.
RussellInCincinnati said:
You showed us sample photos, that's real data that we can interpet for ourselves, thanks. Am relieved to see that the performance with the Voigtlander 15/4.5 is so good. For example, am not seeing significant color shift in corners.

Of course it is ridiculous for digilloyd or whoever to think that there's a tenth of an inch of glass over a sensor that a company is selling as having above-average sensor performance. And further, the sensor is advertised as having less of a sensor cover than most other cameras. Anyone having such a silly thought about a huge layer of glass over the Fuji sensor should not bother posting it without a photo they've taken of the sensor out in the open, taken from the side, showing the hugely visible (2.5mm thick) "cover glass." That's about as likely as Zeiss selling a new Nikon mount full-frame Makro-Planar lens that is filled with chicken soup.
Click to expand...
 
Those samples are what the CV 15mm should look like. It's an ultrawide FF lens with a super compact design. One shouldn't expect it to have perfect corners, even on APS-C. Note, though, the utter lack of color shift, which proves that the XP1 is even better at handling wide non-retrofocal lenses than the NEX-5n.
 
Cptrios, can see you share my opinion that the performance of this sensor with the 15mm non-retrofocal lens is just super. Yes, of course we can all see there is smearing of the corner details, lower corner resolution, but after all who said that the CV 15mm was a perfect lens?

dimitrir: And yes, these CV15 images do show very significant sharpness degradation off center.

As for me not having the slightest idea of what I am talking about dimitrir, first of all, you do not seem to know enough about the topic of sensor performance with wide angle rangefinder lenses to differentiate between lens corner resolution (not fabulous with your CV 15 lens under the conditions you show) and sensor corner color shift (basically none with the Fuji X-Pro 1 sensor , a superb performance with your so-close-to-the-sensor CV 15).

Secondly I haven't seen your link to a photo of the edge of the Fuji sensor, looking from the side, showing the so easily visible 2.5mm thick piece of glass that you seem to think can be found atop it. OK, we'll skip the adequate-according-to-DPreview 0.8mm IR filter on the Leica M9. Your guess must also be that Fuji knows a lot less about glass than the Canon corporation, who manages to crank out a camera that is 5 or 10 times less expensive than the X-PRo 1, while only needing a 1 millimeter thick infrared filter. http://www.mpetroff.net/archives/2012/01/02/canon-powershot-sd400-infrared-cut-off-filter-removal/

dimitrir:Interesting analogy with chicken soup and all, but you have no idea what you are talking about, right ?

Unlike you and empty words, I have repeatedly presented DPreview forum readers with ample real world proof of general photographic knowledge, especially on the topic of across-the-frame image clarity.

















Dimitrir: Again I thank you for your work, showing us the excellent lack of color shift with rangefinder wide angles on the new Fuji X-Pro 1 camera.
 
If I wanted to spend Tens of Thousands of dollars on legacy Leica lenses, I'd buy a Leica.

It's the X-Pro 1's superior lenses (compared to other mirrorless cameras from Sony, Panasonic, etc.) that sell me the most with the X-Pro 1.
 
Thanks for taking the time to show these results.

I placed an order for the XP1, an adapter and the CV 15 mm lens today.

I can't wait to get results like these myself.
 
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