Next lens?

**Belnan** · 05-13-2021, 11:17 AM

Oh there is a whole thread on a 400 2.8, clearly such a lens would be $$$

**pearsaab** · 05-13-2021, 11:50 AM

how about sigma 100-300. it will work with you 1.4 teleconverter. I can't remember but think it won't retain the info but works well together

---------- Post added 05-13-21 at 01:51 PM ----------

Originally posted by pearsaab

how about sigma 100-300. it will work with you 1.4 teleconverter. I can't remember but think it won't retain the info but works well together with focus etc

Sigma APO EX 100-300 f4 - PentaxForums.com

**csa** · 05-13-2021, 11:58 AM

Originally posted by luftfluss

I'm assuming this is a typo, but my picayune brain can't figure it out...

Yeah, don't know where I came up with that!

I would go with a dedicated 400 lens, if within my budget.

**csa** · 05-13-2021, 11:59 AM

Originally posted by pearsaab

how about sigma 100-300. it will work with you 1.4 teleconverter. I can't remember but think it won't retain the info but works well together

---------- Post added 05-13-21 at 01:51 PM ----------

Sigma APO EX 100-300 f4 - PentaxForums.com

Since I already have a 300 F4; this would not be an advantage.

**luftfluss** · 05-13-2021, 12:26 PM

Originally posted by csa

Yeah, don't know where I came up with that!

I would go with a dedicated 400 lens, if within my budget.

I would swear that I've read your posts stating you've used your Sigma 300/4 with the TC, but I could be mistaken. Is that combo unsatisfactory?

Otherwise, one of the Sigma xx-500mm lenses seem to fit the bill, but they are rather large... which leaves us back with the Sigma 120-400 you mentioned, as well as the less expensive 135-400 model.

Several years ago I was in a situation similar to yours, tried manual-focus lenses and really took to it. But not everyone is into that sort of thing, and they are primes, and the good old glass tends to be heavy.

**UncleVanya** · 05-13-2021, 01:29 PM

EDIT: just realized you primarily want a zoom.

Sigma 400mm Tele-Macro AF f5.6 APO - PentaxForums.com

Sigma 400mm APO AF. i have no connection to this seller or sale. There may be others similar in the marketplace.

**UncleVanya** · 05-13-2021, 01:40 PM

This discussion may help:
KP wildlife/bird set up - PentaxForums.com

**MossyRocks** · 05-13-2021, 02:50 PM

Originally posted by csa

Sigma 300 F4 APO Tele/Macro

That is a nice 300 all be it an older one even if it does have the Zen barrel coating. I have it and still use it a lot, especially since I got it at a stole it price. It is small enough to do handheld shots with and has some good reach.

Originally posted by csa

or the 400 F2.8

Did you mean the sigma 400/5.6 as a 400/2.8 would be fantastically expensive and those are huge heavy monsters (I have the A* 400/2.8).

gatorguy · 05-13-2021, 04:05 PM

There really aren't any lenses I lack at the moment. Even so I've found myself searching deals on the 150-450 lately. I have to keep reminding myself I wouldn't use it that often.

**Belnan** · 05-13-2021, 04:09 PM

I think we are clearly in an area where Pentax is behind the competition. Sounds like a used bigma is the best option.

**ramseybuckeye** · 05-13-2021, 04:41 PM

Originally posted by csa

I have the Tamron 70-200, that I use with a Tamron 1.4 TC. I'm very happy with the results, but want a little more "reach".

I can't go over $600-800; so any suggestions? I do want to stay with a zoom, if possible. I have a 300, but use it seldom.

Does the Sigma 300 not work with the Tamron TC?

**csa** · 05-13-2021, 04:47 PM

It does; but I just don't use it much. The faster 70-200 works better for me.

C_Jones · 05-13-2021, 06:24 PM

I would suggest the Sigma 150-500 DG OS for Pentax. Either that or the Sigma 120-400 (for Pentax) as you mentioned. I use the 150-500 on my Pentax K-5 IIs and it provides really nice results for birds in flight and other wildlife (still or moving, plants or animals). Below is a cropped and resized to 75 percent shot I took of a Blue Jay this Spring with my K-5 IIs with the Sigma 150-500 DG OS for Pentax on it.

**DWS1** · 05-13-2021, 07:31 PM

I would love to see a Pentax 200-500 or so, along the lines of the 55-300 plm. I'm not holding my breath. doesn't have to be a (*) lens.

**jerryleejr** · 05-13-2021, 08:12 PM

I’ve got the tamron 28-300 mashing my teething over the DA300 or 150-450…

JJ

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05-13-2021, 11:17 AM	#16
Belnan Site Supporter Join Date: Jul 2010 Location: Nova Scotia Photos: Albums Posts: 1,090	Oh there is a whole thread on a 400 2.8, clearly such a lens would be $$$

05-13-2021, 11:50 AM	#17
pearsaab Otis Memorial Pentaxian Loyal Site Supporter Join Date: May 2011 Location: Richmond, Virginia USA Photos: Gallery \| Albums Posts: 2,900	how about sigma 100-300. it will work with you 1.4 teleconverter. I can't remember but think it won't retain the info but works well together ---------- Post added 05-13-21 at 01:51 PM ---------- Originally posted by pearsaab how about sigma 100-300. it will work with you 1.4 teleconverter. I can't remember but think it won't retain the info but works well together with focus etc Sigma APO EX 100-300 f4 - PentaxForums.com

05-13-2021, 11:58 AM	#18
csa Loyal Site Supporter Join Date: Aug 2014 Location: Montana mountains Posts: 10,133 Original Poster	Originally posted by luftfluss I'm assuming this is a typo, but my picayune brain can't figure it out... Yeah, don't know where I came up with that! I would go with a dedicated 400 lens, if within my budget.

05-13-2021, 11:59 AM	#19
csa Loyal Site Supporter Join Date: Aug 2014 Location: Montana mountains Posts: 10,133 Original Poster	Originally posted by pearsaab how about sigma 100-300. it will work with you 1.4 teleconverter. I can't remember but think it won't retain the info but works well together ---------- Post added 05-13-21 at 01:51 PM ---------- Sigma APO EX 100-300 f4 - PentaxForums.com Since I already have a 300 F4; this would not be an advantage.

05-13-2021, 12:26 PM	#20
luftfluss Site Supporter Join Date: Jun 2011 Location: NJ Photos: Gallery \| Albums Posts: 11,619	Originally posted by csa Yeah, don't know where I came up with that! I would go with a dedicated 400 lens, if within my budget. I would swear that I've read your posts stating you've used your Sigma 300/4 with the TC, but I could be mistaken. Is that combo unsatisfactory? Otherwise, one of the Sigma xx-500mm lenses seem to fit the bill, but they are rather large... which leaves us back with the Sigma 120-400 you mentioned, as well as the less expensive 135-400 model. Several years ago I was in a situation similar to yours, tried manual-focus lenses and really took to it. But not everyone is into that sort of thing, and they are primes, and the good old glass tends to be heavy.

05-13-2021, 01:29 PM	#21
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,401	EDIT: just realized you primarily want a zoom. Sigma 400mm Tele-Macro AF f5.6 APO - PentaxForums.com Sigma 400mm APO AF. i have no connection to this seller or sale. There may be others similar in the marketplace.

05-13-2021, 01:40 PM	#22
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,401	This discussion may help: KP wildlife/bird set up - PentaxForums.com

05-13-2021, 02:50 PM	#23
MossyRocks Loyal Site Supporter Join Date: Nov 2017 Location: Minnesota Photos: Gallery \| Albums Posts: 2,982	Originally posted by csa Sigma 300 F4 APO Tele/Macro That is a nice 300 all be it an older one even if it does have the Zen barrel coating. I have it and still use it a lot, especially since I got it at a stole it price. It is small enough to do handheld shots with and has some good reach. Originally posted by csa or the 400 F2.8 Did you mean the sigma 400/5.6 as a 400/2.8 would be fantastically expensive and those are huge heavy monsters (I have the A* 400/2.8).

05-13-2021, 04:05 PM	#24
gatorguy Moderator Join Date: Feb 2015 Location: Central Florida Photos: Gallery Posts: 6,092	There really aren't any lenses I lack at the moment. Even so I've found myself searching deals on the 150-450 lately. I have to keep reminding myself I wouldn't use it that often.

05-13-2021, 04:09 PM	#25
Belnan Site Supporter Join Date: Jul 2010 Location: Nova Scotia Photos: Albums Posts: 1,090	I think we are clearly in an area where Pentax is behind the competition. Sounds like a used bigma is the best option.

05-13-2021, 04:41 PM	#26
ramseybuckeye Site Supporter Join Date: Apr 2009 Location: Hampstead, NC Photos: Gallery Posts: 17,291	Originally posted by csa I have the Tamron 70-200, that I use with a Tamron 1.4 TC. I'm very happy with the results, but want a little more "reach". I can't go over $600-800; so any suggestions? I do want to stay with a zoom, if possible. I have a 300, but use it seldom. Does the Sigma 300 not work with the Tamron TC?

05-13-2021, 04:47 PM	#27
csa Loyal Site Supporter Join Date: Aug 2014 Location: Montana mountains Posts: 10,133 Original Poster	It does; but I just don't use it much. The faster 70-200 works better for me.

05-13-2021, 07:31 PM	#29
DWS1 Site Supporter Join Date: Aug 2018 Location: Arkansas, USA Posts: 1,169	I would love to see a Pentax 200-500 or so, along the lines of the 55-300 plm. I'm not holding my breath. doesn't have to be a (*) lens.

05-13-2021, 08:12 PM	#30
jerryleejr Loyal Site Supporter Join Date: Aug 2011 Location: TN Posts: 774	I’ve got the tamron 28-300 mashing my teething over the DA300 or 150-450… JJ