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howieb101 · 05-10-2016, 10:54 PM

Hi All.

If someone has the FA-J 18-35mm and a K1, can they please provide some feedback on how good/poor the lens performs. I've seen examples mounted on a Sony but I really would like to see K1 examples and thoughts.

Also, I am not that worried about wide open performance. More about how it will be in the F5.6-F16 range, ie, landscapes type settings or where I want great depth of field.

For a genuine full frame 18mm wide perspective, it is very inexpensive.

I look forward to your feedback.

Howie Be

**Douglas_of_Sweden** · 05-10-2016, 11:28 PM

It's on my list of lenses to test. But there are so many that I haven't got there yet. I'll try to remember to post something here.

elpolodiablo · 05-10-2016, 11:56 PM

Only got my K-1 last night, and a FAJ 18-35 on the way, will be doing a few tests with this combo this weekend, I will report back

i5_david · 05-11-2016, 01:08 PM

this is cool,... can't wait for your tests guys. thanks in advanced! Highly interested!

The question is now

Pentax 18-35
Sigma 17-35 or
Tamron 17-35 ???

(Thats the question for me as I can't afford the 15-30 which I would absolutely love

)

GodsPetMonkey · 05-11-2016, 06:15 PM

Originally posted by elpolodiablo

Only got my K-1 last night, and a FAJ 18-35 on the way, will be doing a few tests with this combo this weekend, I will report back

Did you buy the one from Warwick that was on eBay?

elho_cid · 05-18-2016, 06:16 AM

My ultra wide angle options for K-1 are currently only M20/4 and FAJ18-35. I'm going to see which one performs better after this weekend. I hope at least one of them will be up to the taks of rendering all the pixels nicely.

surfar · 05-19-2016, 02:43 PM

I'm interested in the Tamron 17-35mm, has anyone used it on the K1 in FF mode yet?

ChatMechant · 05-19-2016, 03:05 PM

Originally posted by elho_cid

My ultra wide angle options for K-1 are currently only M20/4 and FAJ18-35. I'm going to see which one performs better after this weekend. I hope at least one of them will be up to the taks of rendering all the pixels nicely.

Looking forward to seeing this comparison.

elho_cid · 05-20-2016, 02:20 AM

Originally posted by ChatMechant

Looking forward to seeing this comparison.

I have no detailed analysis yet, but yesterday I managed to snap few shots before sunset. Pretty disappointing, the corner sharpness is quite bad, with substantial chromatic aberrations on both lenses. Stopping down to f16 yields usable results, if the picture is not subjected to excessive pixel peeping.
FAJ came out better, mostly because it allows to use polariser. There is AFAIK no such thing as slim CPL with 49mm thread, and the M20 vignettes badly with regular CPL (black corners).
I hope for something like Canons EF 17-40/4 to be available soon on K-mount. DFA15-30 is too large, expensive and heavy.

Abbazz · 05-21-2016, 04:27 AM - **1 Like**

Originally posted by elho_cid

There is AFAIK no such thing as slim CPL with 49mm thread, and the M20 vignettes badly with regular CPL (black corners).

I have two slim polarizers (CPL) in 49mm mount that I use without any issue on my Pentax-M 20/4, one branded Fotga (not very good) and the other one branded Nisi (good quality, no color cast). Try googling "NiSi 49mm WMC CPL Filter Ultra Thin Waterproof Multi Coating Polarizing Filter".

Cheers!

Abbazz

elho_cid · 05-21-2016, 10:27 AM

Thanks! Today I just learned how to get decent sharpness in the corners with the M20, I just have to switch to liveview and carefully focus with special care about the corner. Then it is quite good at f16. It still lacks some contrast and extra sharpness of more modern designs, but it's an ok stop-gap solution.

6BQ5 · 05-22-2016, 09:33 PM

Not to hijack the thread ...

But does anyone here have the Sigma 12-24 FF lens?

05-10-2016, 10:54 PM	#1
howieb101 Veteran Member Join Date: Nov 2008 Location: Melbourne, Australia Photos: Gallery \| Albums Posts: 594	FA-J 18-35mm on K1: General performance Hi All. If someone has the FA-J 18-35mm and a K1, can they please provide some feedback on how good/poor the lens performs. I've seen examples mounted on a Sony but I really would like to see K1 examples and thoughts. Also, I am not that worried about wide open performance. More about how it will be in the F5.6-F16 range, ie, landscapes type settings or where I want great depth of field. For a genuine full frame 18mm wide perspective, it is very inexpensive. I look forward to your feedback. Howie Be

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05-10-2016, 11:28 PM	#2
Douglas_of_Sweden Site Supporter Join Date: Apr 2008 Location: Stockholm Photos: Gallery Posts: 3,374	It's on my list of lenses to test. But there are so many that I haven't got there yet. I'll try to remember to post something here.

05-10-2016, 11:56 PM	#3
elpolodiablo Veteran Member Join Date: Dec 2009 Location: Sydney, Australia Photos: Gallery Posts: 1,637	Only got my K-1 last night, and a FAJ 18-35 on the way, will be doing a few tests with this combo this weekend, I will report back

05-11-2016, 01:08 PM	#4
i5_david Veteran Member Join Date: Feb 2016 Posts: 332	this is cool,... can't wait for your tests guys. thanks in advanced! Highly interested! The question is now Pentax 18-35 Sigma 17-35 or Tamron 17-35 ??? (Thats the question for me as I can't afford the 15-30 which I would absolutely love )

05-11-2016, 06:15 PM	#5
GodsPetMonkey Senior Member Join Date: Dec 2015 Location: Brisbane, Australia Posts: 134	Originally posted by elpolodiablo Only got my K-1 last night, and a FAJ 18-35 on the way, will be doing a few tests with this combo this weekend, I will report back Did you buy the one from Warwick that was on eBay?

05-18-2016, 06:16 AM	#6
elho_cid Veteran Member Join Date: Dec 2007 Location: Prague Photos: Gallery Posts: 1,199	My ultra wide angle options for K-1 are currently only M20/4 and FAJ18-35. I'm going to see which one performs better after this weekend. I hope at least one of them will be up to the taks of rendering all the pixels nicely.

05-19-2016, 02:43 PM	#7
surfar Pentaxian Join Date: Jan 2015 Location: mid nth coast,nsw Photos: Gallery Posts: 6,147	I'm interested in the Tamron 17-35mm, has anyone used it on the K1 in FF mode yet?

05-19-2016, 03:05 PM	#8
ChatMechant Pentaxian Join Date: Jun 2010 Location: Matsuyama Photos: Gallery Posts: 1,284	Originally posted by elho_cid My ultra wide angle options for K-1 are currently only M20/4 and FAJ18-35. I'm going to see which one performs better after this weekend. I hope at least one of them will be up to the taks of rendering all the pixels nicely. Looking forward to seeing this comparison.

05-20-2016, 02:20 AM	#9
elho_cid Veteran Member Join Date: Dec 2007 Location: Prague Photos: Gallery Posts: 1,199	Originally posted by ChatMechant Looking forward to seeing this comparison. I have no detailed analysis yet, but yesterday I managed to snap few shots before sunset. Pretty disappointing, the corner sharpness is quite bad, with substantial chromatic aberrations on both lenses. Stopping down to f16 yields usable results, if the picture is not subjected to excessive pixel peeping. FAJ came out better, mostly because it allows to use polariser. There is AFAIK no such thing as slim CPL with 49mm thread, and the M20 vignettes badly with regular CPL (black corners). I hope for something like Canons EF 17-40/4 to be available soon on K-mount. DFA15-30 is too large, expensive and heavy.

05-21-2016, 04:27 AM - 1 Like	#10
Abbazz Pentaxian Join Date: Nov 2006 Location: Jakarta Posts: 667	Originally posted by elho_cid There is AFAIK no such thing as slim CPL with 49mm thread, and the M20 vignettes badly with regular CPL (black corners). I have two slim polarizers (CPL) in 49mm mount that I use without any issue on my Pentax-M 20/4, one branded Fotga (not very good) and the other one branded Nisi (good quality, no color cast). Try googling "NiSi 49mm WMC CPL Filter Ultra Thin Waterproof Multi Coating Polarizing Filter". Cheers! Abbazz

05-21-2016, 10:27 AM	#11
elho_cid Veteran Member Join Date: Dec 2007 Location: Prague Photos: Gallery Posts: 1,199	Thanks! Today I just learned how to get decent sharpness in the corners with the M20, I just have to switch to liveview and carefully focus with special care about the corner. Then it is quite good at f16. It still lacks some contrast and extra sharpness of more modern designs, but it's an ok stop-gap solution.

05-22-2016, 09:33 PM	#12
6BQ5 Veteran Member Join Date: Jun 2013 Location: Nevada, USA Photos: Albums Posts: 3,348	Not to hijack the thread ... But does anyone here have the Sigma 12-24 FF lens?

FA-J 18-35mm on K1: General performance

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