EX-24

Exhibit 24

LIMITED POWER OF ATTORNEY FOR
SECTION 16 REPORTING OBLIGATIONS

	Know all by these presents, that the undersigned hereby makes,
constitutes and appoints William J. Takahashi and J. Christohper Jackson
as the undersigned's true and lawful attorneys-in-fact, with full power
and authority as hereinafter described on behalf of and in the name,
place and stead of the undersigned to:

(1)	prepare, execute, acknowledge, deliver and file Forms 3, 4 and 5
(including any amendments thereto) with respect to the securities of
Calamos Strategic Total Return Fund, a Delaware statutory trust (the Trust),
with the United States Securities and Exchange Commission, any national
securities exchanges and the Trust, as considered necessary or advisable
under Section 16(a) of the Securities Exchange Act of 1934 and the rules
and regulations promulgated thereunder, as amended from time to time
(the Exchange Act);

(2)	seek or obtain, as the undersigneds representative and on the
Undersigneds behalf, information on transactions in the Trusts securities
from any third party, including brokers, employee benefit plan administrators
and trustees, and the undersigned hereby authorizes any such person to
release any such information to the undersigned and approves and ratifies
any such release of information; and

(3)	perform any and all other acts which in the discretion of such
attorney-in-fact are necessary or desirable for and on behalf of the
undersigned in connection with the forgoing.

The undersigned acknowledges that:

(1)	this Power of Attorney authorizes, but does not require, such
attorneys-in-fact to act in their discretion on information provided
to such attorneys-in-fact without independent verification of such
information;

(2)	any documents prepared and/or executed by such attorneys-in-fact
on behalf of the undersigned pursuant to this Power of Attorney will be
in such form and will contain such information and disclosure as such
attorneys-in-fact, in his or her discretion, deems necessary or desirable;

(3)	neither the Trust nor such attorneys-in-fact assumes (i) any liability
for the undersigneds responsibility to comply with the requirement of the
Exchange Act, (ii) any liability of the undersigned for any failure to comply
with such requirements, or (iii) any obligation or liability of the undersigned
for profit disgorgement under Section 16(b) of the Exchange Act; and

(4)	this Power of Attorney does not relieve the undersigned from
responsibility for compliance with the undersigneds obligations under the
Exchange Act, including without limitation the reporting requirements under
Section 16 of the Exchange Act.

	The undersigned hereby gives and grants the foregoing attorneys-in-fact
full power and authority to do and perform all and every act and thing
whatsoever requisite, necessary or appropriate to be done in and about the
foregoing matters as fully to all intents and purposes as the undersigned might
or could do if present, hereby ratifying all that such attorney-in-fact of, for
and on behalf of the undersigned, shall lawfully do or cause to be done by
virtue of this Limited Power of Attorney.

	This Power of Attorney shall remain in full force and effect until revoked
by the undersigned in a signed writing delivered to such attorneys-in-fact.

	IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed as of this 25th day of January, 2017.



                                        /s/ John P. Calamos, Sr.
						        John P. Calamos, Sr.

EX-99

Exhibit 99

			Joint Filer Information

Name:				Calamos Advisors LLC

Address: 			2020 Calamos Court
				Naperville, Illinois  60563

Designated Filer:		John P. Calamos, Sr.

Issuer & Ticker Symbol:		Calamos Convertible Opportunities
				and Income Fund (CHI)

Relationship to Issuer:		Investment Advisor

Date of Event
Requiring Statement:		1/23/2017

Signature:			By: /s/ J. Christopher Jackson